Shortly before Christmas is here again noble and festive – with three special, relatively expensive, dimmable E27 LED lamps from verbatim, Jooby and Carus.You should be at least as bright as traditional 40-watt incandescent, but with their extraordinary designs more than just low power light offer. My comparison test considered this claim, revealing but also the performance values measured in the laboratory and professional.
So the three test candidates will look different, they have a few features together: the E27 screw base, the dimming, a “warm white” color temperature, clear plastic covers, the more or less pronounced circular beam characteristics and a nominal luminous flux of at least 470 lumen. And of course, relatively high prices, combined with the claim to protrude through her unique designs from the crowd LED Retrofits – in their own way. In healthinclude, these three “Pears” were much too bad–hidden under an opaque shade even in the de-energized State.
With all love for the ambitious concepts, designs and production methods: The filthy measurement data from the laboratory should not be missing yet. Eventually, this LED retrofits to be an adequate replacement for conventional light bulbs with at least 40 watts in its pure function as light sources and drag officially only from 4.2 to 8.8 watts. It starts with a ‘novelty’, which I had already seen for the first time in the spring of 2014:
The Asian “air mirror”
At the trade fair “light + building” more than one and a half years were ‘ Mirage ball ‘ lamps one of the eye-catcher at the booth of verbatim. The “Mitsubishi Chemical”subsidiary wanted me at the time on demand promptly various test specimens from their upcoming LED range delivering what has still not fully succeeded until today. After all, was no Mirage in Japan designed and produced in China “air mirror- ball”, but ended upon the European market now and with me.
Already the official data surprised something: the colour temperature should be 2500 Kelvin “warm”, for itefficiency with meager 490 lumens from 8.8 Watts (EU eco-label A) would be extremely tenuous. Is the nominally meager yield of approx. 56 lm/W may be a particularly high quality of light? No – the colour rendering index is specified only with RA 80.
Low efficiency because of “optical structure”?
My demand for the verbatim product management was answered thus:
“There is a certain loss for LEDs with warm colours of light and optical structure. The product was designed primarily with a view to its optical effect…”
The “optical”structure consists here of a spherical, round “dual shot”-injection-lens in the middle of the clear plastic hood, whose upper, frosted part of polycarbonate (PC) and light streuendem material und the clear/transparent lower part should consist exclusively of PC. That fact ensures a very round, striking lighting image, the laboratory of my blog partner “David communication” a half value angle of almost 247 degrees attested (Download pdf of the diagram) – so something more than the specified 230°:
To anticipate it: a homogeneous beam as the verbatim lamp create their two test competitors do not. The indirect light impression is even more uniform than many clear led “Fadenlampen”. Its value also underlines the “mirage ball” by a heavy white cast metal housing that ensures at 11.2 cm total length and 6 cm in maximum diameter of the lamp for a weight of 128 grams. The nominal lifetime is estimated at 15,000 light hours and 100,000 switching cycles.
With the first light came also the fog
For the first time in my test version that is open, hanging was for me a lighter, Schlieren-shaped fog precipitation to the upper part of the hood (picture left) Also a small supplement on the packaging points out:
“If the light source is used the first time, it may lead to isolated that stud the surface of the glass bulb. This is not uncommon and will disappear after some time.”
Actually sat down after cooling down the condensate and likely evaporate probably after prolonged operation completely – a phenomenon that I have observed already common in clear LED-lamps and has no negative influence on function or life.
Still, but probably not really flicker-free
After two continuous operation of a normal switch, there was otherwise no abnormalities: according to ’ ELV energy master “instrument moved the verbatim 8.2 Watts with a electric power factor of 0.91, was completely silent and was warm maximum of 62 degrees in the hottest point of the casing. The delay was less than half a second; After switching off, the LEDs took about one second until the utter darkness.
Less nice, the Flicker valuesthat provided me with the behaftetete with some uncertainties “Flicker Tester” app “Viso systems” were (Right screenshot): Index 0.2 and 53% at a reference frequency of 100 Hertz speak very much in favour of that particularly sensitive people here might perceive an unstable, disturbing light.
This effect is intensified when connected to a dimmer and medium brightness setting: I have measured even 71% at a phase section model up to 64% and the phase control dimmers (the index remained at 0.2). After all, the screen of my digital camera was unimpressed and offered a flicker-free image.
Color fidelity is slightly better than specified
Also in the laboratory, my test lamps be measured only after two hours, because cold running values say little of the practice. Here the verbatim good 477lumen and 2562 Kelvin made with aFarbwiedergabindex of 83.3 (Pdf download of the entire measurement protocol).
This is within the tolerance range of the manufacturer’s specifications (see carton and label left), though I “Red saturated” (R9) would have expected something more than just 17.2 above all with the single value for the difficult additional measuring color.
Because lighting my default color fidelity motif with two bikes in miniature against a white background, the “mirage ball” made no bad character (“daylight” without post-processing white balance):
Okay – the sattrote scooter left seems rather red orange and deep blue Yamaha moves as well as the pad in the direction of yellow-red. In the endless dance of the “warm white” RA-80 LED bulb I find but above average and free of unwanted color casts – the figure since also the shadow is very clearly defined without diffuse meander or multi shade.
The spectral diagram with the distribution of power in milliwatts per nanometre of wavelength of light shows the color tip at approximately 609 nm and the dominant in about 586 nm. The green yellow edge not overly strong interfering left up to the small building Hill in the action:
Altogether a rather pleasant light that could satisfy even the light bulbs-hardcore group. Missing only the thing with the dimming. That is in principle, can cause however, depending on the dimmer model unpleasant side-effects such as hum or flicker (not to be confused with the for all visible flicker – that there is correctly adjusted with a dimmer!).
On the phase dimmers less noise
Acoustically quite pleasantly, it ran with a non-adjustable “Ehmann be” phase dimmers from the hardware store where the verbatim lamp in quiet environment buzzed up to maximum 10 cm distance. The rule margin was 3.9 to 10.2 Watts (overall dimmer + lamp), which corresponded to 25 to 100% brightness. The effective range lay above all in the lower half of the path; up around what hardly changed. Fibrillation reported in dark and medium setting up delay on over half a second and the “flicker”Tester app extended up to 64%.
More evenly worked the scheme with an adjustable phase control dimmers of Jung, where the “mirage ball” required no prolonged reaction time and allowed the a flicker-free range between 3.6 and 10.6 W. However, lamp and dimmer buzzed up to a distance of about one meter – especially at medium position. This is no more acceptable as the “flicker” value of up to 71%.
My test result:
Around 17 euros for an dimmable LED lamp “designed in Japan” and “made in China” (lamp imprint right) – with just under 480 lumens measured by us: that is expected for many potential customers far beyond the threshold of pain.
Although optical appearance, light color, coverage and quality of materials can persuade – otherwise the verbatim but not significantly settles by the significantly cheaper, dimmable competition in the 470-lm “Pears” class, especially since the measured efficiency of around 59 lumens/Watt fails very below average – even when taking into account the particularly “warm” colour. For comparison: a verbatim “Pear” managed whopping 82 lm/W over two and a half years ago with 3000 Kelvin.
The “mirage ball at the time of its exhibition premiere” rather no longer was in the spring of 2014 sure something special –. My strict LED rating scale is not for more ‘ out as
The “mini pear”, Ukraine
Something like that which unsolicited group Infomir from Frankfurt/M. sent me there recently, I had until now never seen: an E27 LED lamp in a small format – only 8.6 cm long, 3.8 cm diameter, 44 grams – with clear hood and a total of 64 light points, distributed on four pillars-esque, vertical, slightly slanting stripes.
That reminded me of the well-known LED Fadenlampen and it works well after a very similar principle, wherein numerous small CoB Chips are lined up close together, in the sum of fairly bright light with above-average efficiency. “Décor by Jooby” called the Retrofit series, which is produced at “Telecommunication technologies” in the Ukrainian Odessa (below left) with the best EU ecolabel A++ is decorated according to the carton and label.
The “Jooby” is only on the outside small
Now, LED lamps from Ukraine itself are nothing special – despite war and crises. Philips makes it produce for example, parts of its range, OSRAM as well. I do not necessarily expect but a so exceptional, compact design from there.
Do not be fooled from the dimensions: this little thing made of impact resistant polycarbonate and White aluminium is only externally the dwarf among the three test candidates. Officially the bulbs from 4.2 Watt 470 lumen luminous flux skin ‘, with a ‘warm white’ colour temperature of 2700 Kelvin and colour rendering index CRI > 80. It should be even dimmable somewhere and sometime from early 2016 for just 13 euros as well as to buy.
Provided the “Jooby” on a dimmerlosen switch to barely noticeable delay vigorously, almost blindingly bright light in my hanging test version, gave only a very faint whirring of (in quiet setting at 5 cm distance can be heard), pulled after two hours of steady 4.2 Watts with an electrical power factor of 0.80 and maximum of 47 degrees was warm at the hottest spot near the base. After switching off, there were around a second ‘Off thread’ to the utter darkness.
Light leg Butterfly-shaped
My camera screen showed no flicker or “shutter stripes”during the photo sessions. saw the “flicker”Tester app something critical: index 0.1 and 33 percent at a reference frequency of 100 Hertz is at least an indication of a not perfectly stable light, particularly as these values can rise to 0.2 to 50%, if a phase-control dimmers in the game and turned on about half brightness. At the latest according to sensitive people could perceive a flicker, but doesn’t have to be.
That would be also a shame, because the “Décor by Jooby” otherwise quite pleasant, as long as you look directly in the undimmed lights. This applies, for example, for the beam pattern, whose Diagramm represents a kind of butterfly form with a half value angle of about 264 degrees (Download pdf). In reality, it looks like this:
Brightest’s will and so to the pages, go up and down a slight vignetting takes place.That was so similar to Yes when positioning the LEDs also expected – providing work of 280 ° “beam angle” is somewhat too optimistic (carton and label right). See a diffusing shade leveled and homogenized something, as well as with the variant with Matt hood, but with slightly reduced light intensity is of course the light beam.
Slightly better values than officially indicated
The clear test sample provided good 485 lumen with 2559 Kelvin and RA 82.1 – was something light, “warmer” and faithful color than specified (print links, Pdf-download of the test protocol). The additional reading for “Red saturated” (R9) can be with 13.9 no wonder things expect and something under the light quality of the above tested verbatim “Mirage Ball” sorted located. The differences in my default color fidelity motif are however minimal:
The shadows are slightly zerfaserter, but still relatively clear, red and white more towards move an ounce yellow, for the deep blue of the Yamaha under the “Jooby” light has something more vibrant and brighter. Actually see one in their spectral diagram right in the direction of Red steeper sloping edge, while gentler left of the yellow orange mountain into the Valley and up a little with Blue Hill connects:
Please don’t misunderstand: we’re talking about nuances that probably 95% of all light customers even in direct comparison could distinguish. Most observers would perceive the light of both lamps as quite similar to incandescent lamps and free from unpleasant color casts. So I suspect so.
Each dimmer different results
Remains still the dimmer check, which provided two very different results: in the not adjustable Ehmann phase control dimmers range with 2.1 to 4.6 watts total output remained very tight (equivalent to about 40 to 100% brightness). There were no significant increase of delay, flicker value or noise switch operation. The buzz was noticeable – not a problem for most applications in quiet environment to a maximum 15 cm.
The adjustable young phase control dimmers at optimal preset rule potential of this Ukrainian won out: 0.6 (almost invisible light) and 5.1 watts total power (100%) – super! However, flicker intensified especially in the central region of the setting (index 0.2, rate 50%) as well as the whirring sounds of lamp and dimmer (up to approximately 50 cm good to hear) to barely acceptable values. Also, the light at dark position left up to three seconds, until it “was booted after turning”.
Very optimistic rated life
The silver bullet for the “Décor by Jooby” (left, the view from above on the led “Steles”) would be so providing an adjustable phase section dimmer and a moderate adjustment of the safetythat takes advantage of not the whole amount down. This should then be sufficient for most requirements and work well.
Infomir in the nominal service lifeis very optimistic: Over 50,000 hours of light and at least 100,000 switching cycles – it hardly a manufacturer dares. Skeptics will reassure “Jooby” with three years warranty – five would be better with an LED retrofit with double-digit price.
My test result:
Super Compact, very efficient (nearly 113 lumens/Watt!) and bright, original design “Wow effect”, pleasant light colour, extremely long Nenlebensdauer: the best characteristics of the “Décor by Jooby” with clear hood, E27 socket, and model number JL 02.04.
That’s why it doesn’t mean however: “L ‘ Ukraine – douze points!” In addition, this LED retrofit should be color-faithful, have a more uniform radiation and deliver flicker-free, responsive light without buzzing and with next rule margin to dimmers of various kinds. 13 Euro finally are nothing to sneeze at in the 470 lumen class – as you would expect something.
At least when compared with the verbatim lamp above the “Jooby” can settle a little, because it is less flicker, significantly more efficient, some noise and more spectacular designed (caution: strictly subjective B-score!). Therefore, my LED rating scale brings a half dots more ‘ out and bought
two and a half stars.
The airy, green E27 design object from Hesse
Actually I should not test this lamp because it essentially is a dimmable model, the this procedure has completed at the beginning of the year.
Because but the Marburger parent company brought a special series called “Carus lookatme” with eight different colours anodized housings and clear polycarbonate case on the market, mounted in Fronhausen Seidel in November, it instead requires almost 20 euro less than 7 (of course per piece, not all together), you can even check if they’re worth their money.
The Green variant in a large, black, corrugated cardboard packaging with simple print came to try out (Photo left) and made visually much more here than her despicable sister with the Large, white bottomalready switched off. The transparent cover of the coloured aluminum parts gives what airy Schwebendes E27-“Pear” – with a total weight of only 75 grams at 10.8 cm in length and up to 6 cm in diameter as little more than air can be also felt in it. Are even appropriate to 2 grams less than at my January test lamp Eureka!
This time no condensation under the hood
Even with the offal working after probably something at Carus since January; Anyway, this new model seems to be slightly more efficient as well as visually and acoustically slightly less noticeable. First indication: when the test light there was this time no visible precipitation underneath the hood. Second note: In the camera display remained flicker-free image at the lit shots.
The “flicker”Tester app showed when operating on a normal switch although no top value 0.1 and 28% rate of flicker at a reference frequency of 100 Hertz in the moderate range (right screenshot)but remained with index. Even better: when the dimmer connected this value not went even beyond 40%. Thus the Carus fetches the top position at least in this test-trio and single criterion ever.
In my test version that is open, hanging there with the switch full brightness – without noise after about a half-second. After two hours of continuous operation, I’ve measured 8.8 Watts at an excellent electrical performance factor of 0.95 (Pro Lab: 8.5 W, PF 0.96) as well as maximum of 66 degrees on the hottest spot of the housing. After switching off, the light is hidden just under three seconds what speaks for a fat storage / filter capacitor.
The Carus lights higher up a League
That the “lookatme” plays a League above the two competitors, is evident in the laboratory values: 640 lumen (lm instead of the official 600 [see lamp imprint on the left] and the last determined 616 lm), 2635 Kelvin color temperature and color rendering index RA 92.6 (Pdf download of the test protocol).
The brightness is equivalent to about an (imaginary) 50-watt light bulb. Slightly improved compared to the white January model also the value for the especially tricky additional measuring color is “Saturated red” (R9). He is now at 58.8 and benefit of course above all the Red Ducati in my default color fidelity motif:
Despite the usual “warm white” lamps yellow shift, this image looks noticeably neutral than the verbatim and the “Jooby”; the two mopeds settle more clearly from the surface; the colours are better to identify. Small drawback: the drop shadow is due to the ring-shaped arrangement of the individual LEDs under the clear cover something indifferent, because here, several single shadows overlap.
The color tip is located on the right
The spectral diagram shows the Lichtqualitäts class difference between the Carus and their competitors: while the color dominant with approx. 584 nm approximately at the same level, is the “color peak” is however with 620 nm to the right; the flank enters flatter and farther in the dark red area.
This is of course still a bit away from the rise evenly from left to right spectral gradient of an incandescent lamp, but offers an acceptable imitation without unpleasant green, blue or pink color casts and waives the largely useless, sometimes even harmful UV and Infrared shares traditional bulbs.
It’s not really about
Unfortunately the Carus but also less circular radiation than lamps with tungsten wire or LED filamentoffers. Promised to be 240 degrees, measured, we have only 192 ° half value angle (HalbwertswinkelLeider bietet die Carus aber auch weniger Rundstrahlung als Lampen mit Wolframdraht oder. Versprochen werden 240 Grad, gemessen haben wir nur gut 192° (pdf-Abstrahldiagramm). Beim Blick von der Seite ergibt sich eine Lichtkeule, die entfernt an einen Manta-Rochen erinnert und im Leuchtbild so aussieht:
The caused by the individual LEDs and the inner circular lens, radiating outward bulges are easily recognizable, while spreads relatively little brightness down towards the base. Their optimum lighting effect unfolds so also the ‘lookatme’ hanging close to the ceiling or standing in as deep position in space – for example, at table height.
No one then needs a dimmer?
At this point it is time for the obligatory dimmer tests again, of course, although last night a blog reader wrote me:
“Regarding the tests on different dimmers I wonder why you put so much work into. A friend of dimmers are you personally? Widely used are dimmer from your point of view? Nobody I can think in my circle of friends and acquaintances who has another one. The ‘still’ refers to that was different in the 90s. I personally have never owned one.
From energy organizers dimming not worth LED bulbs m. E.. “Feel for muted lighting I specially luminaires provided for better suited than dimmed lights, which are actually designed for the delivery of high amounts of light.”
Individual perceptions and circles of acquaintances can be so different. German households, a two-digit million number of various types of dimmer should probably Potter (not counting the many “Smart lighting ‘ systems, that also can Dim).
I really like using dimmer to the needs and situation-dependent brightness or color temperature setting and presumably at least half of the readers here probably also does. House electronic companies produce their numerous dimmer models to hundreds of thousands not for fun and for the dump safely – the same applies to the major LED manufacturers, who all have a significant portion of dimmable lamps and lamps in the range.
Take here dear phase dimmers
To my clear statement for the ‘lookatme’ by Carus: stay away from phase control dimmers! Here a flicker-free and pretty steady, wide control range is possible – my Adjustable young model that went from 2.4 to 10.3 Watts total output or about 10 to 100% of maximum brightness. Especially at a medium setting, a thunderous continuous bugged butbuzzing lamp and dimmer which remains audible in quiet environment good one meter distance. So what you don’t want safe, for example, in the bedroom.
It was much quieter on the Ebo phase dimmers: here I heard from the lamp a pulsed whirring noise up to 15 cm in distance, while the dimmer was himself still. Despite missing Justierschräubchen, the rule range with 2.4 to 10 Watts was still sufficiently large. However the brightness changed not really proportional – the biggest changes happened very quickly in the bottom of the rule, while above around no longer much did himself. The delay ranged from well a second darker default about half a second at full light output.
Unfortunately, only implied warranties
In January, the white Carus model was significantly louder during the test by the way on all dimmers. I became since then still deaf or it was screwed a little bit on the electronics of the lamp series. Carus product page there is a link that should lead to a Pdf list of compatible dimmers. I find there but unfortunately only a white page – see more? Then write it me below in the comments ‘ in.
Stay nor the drought data: Measured efficiency of 75 lumens/Watt, EU eco-label A + rated life of 25,000 hours of lighting and switching cycles, no extended warranty – only the statutory warranty period. Especially the latter is rather weak for a LED light, the dizzying 19.99 euros. “Verbraucherfreundlich” will demonstrate otherwise, as several competitors for some time with warranty periods of Up to five years.
My test result:
Special has a price – in LED retrofits. The “lookatme” series by Carus is indeed something special: largely designed in the middle of Germany and produced, very true to color, pleasant light colour, distinctive appearance which differentiates itself with its colours and the optical design of the light source by the usual (right, the view from above).The adjective “Hesse” is now time not “hesslich” or something like that-I need to know, because I come from this beautiful state.
Compared by me in January tested, normal model for 6.99 Euro may also some electronic innards have been improved – with a suitable dimmer model, the lamp is certainly pretty good, noise and flicker low adjustable. Whether all but justifies a hefty surcharge of 13 euros ? Could be of course that you loose pay such sums from the petty cash – with “low light” has little to do but.
They “lookatme” – E27-LED lamps from Hessen are with their distinctive look and Abstrahlcharakterstik rather want to be status symbols or objects presented proudly and openly – in this respect maybe even ideal as fine Christmas gifts suitable. Therefore my-5 LED scale gives this time benevolent
three and a half stars.