Segula LED Lamps

Three test lamps of the Cologne LED-retrofit provider Segula with me and in our laboratory have landed for the first time: an E27-“Pear”, an E14-“Candle” and a GU10 spot. Reasonably convince just one of these bulbs can (or even not – see Update at the end of the post).

“Convince Segula LED bulbs through its classic design. Our LED light bulbs have no additional heatsink, no sensitive electronics and produce no shadow. You have the original design and 360 degree illumination easily.”

To advertise the Rhinelander for their largely dimmable lamps which differ not only outwardly massively by the majority of the competition. The LED chips take over here obviously not only the light function, but also a part of the tasks that are otherwise performed by Incredibleflashlight. Can this work satisfactorily?

80 LED chips under glass

Test object number one is a dimmable E27 lamp “made in China” (packet details on right), which officially 4.9 Watts power consumption, 400 lumen luminous flux, 2600 Kelvin color temperature and colour rendering index RA 80 conventional, “clear” 35-watt incandescent lamps intended to replace (a mathematical comparison value, because there is no such lamps).

To sit in the middle of the glass cover four Board wing with 20 ‘Low Power’– SMD-LED-chips. 60 mm diameter, 105 mm in length and 39 grams weighed me differ very little from the electricity-guzzling predecessors weight. Price in the Segula online shop: 18,95 EUR.

The official classification in the New EU eco-label is the second-best class A + because of the energy efficiency index is between 0.17 and 0.11. This is consistent with my calculations, even when the actual, less favourable performance – but more on that later.

First test station: an open socket on a dimmerlosen switch. The lamp lights without delay, no noises and is not warmer than 49 degrees – despite missing heatsink in continuous operation at the hottest point of the base. According to my “energy meter” of electric power factor is fabulous 1.0 (officially 0.86). The power consumption increases by 5.1 (cold) after about two hours of 6.3 Watts.

After an extended period of light, a slight condensation develops when cooled in the Interior of the glass flask. Volatile constituents of adhesives or similar, showing up on parts of the lamp as a transparent film evaporate here apparently. After switching on again, he disappears and does not affect the radiation.

Strange appearance

The subjective impression of the light is ambiguous. On the one hand, he appears darker and imbalanced as a traditional clear 40-Watt-“Pear” (see the beam image at the top of the post)very light bulbs similar to “warm” and some, on the other hand clearly. Mainly Orange tones are very dominant, and the Green share appear over-represented.

The impression is confirmed in the laboratory of my new (and yet anonymous) blog-cooperation partners. Instead of 400, only around 348 lumens instead of 2600 Kelvin were only 2510 K and instead of RA/CRI 80 only 71.1 determined (with eight test colours). The “color peak” (Pdf download of the complete measurement protocol) is with about 602 nm actually situated in the Orange area.

Even sadder, it looks at the entire colour rendering index with 14 test colors. Here the mean is only 61.7. Particularly striking is the extreme weakness in R9 (saturated red), where slips the colour fidelity with 17.6 even in negative territory. No glory leaves at R8 (lilac purple) with 47.6, R10 (yellow saturated) with 53.9 and R12 (blue saturated) with 38.6. That, however, playing R14 (leaf-green) using 94.8 excellent fails, clearly shows where the journey goes.

Since September 1, bulbs for indoor use according to EU regulation must have at least RA 80 – this requirement is not satisfied by far of the Segula. After all, the life information of 20,000 hours of light and a million switching cycles clearly above’m lie.

Dimming is a matter of luck

And how it looks with the dimming? Difficult. On the one hand, there were no single – and switch-off delay or whirring noises. The power factor maintained perfect 1.0 to maximum setting. On the other hand this LED-lamp with my testing reacted very sensitive to theoretically unsuitable, standard household dimmer (with high minimum load and without adjusting screw).

A variant with stagestocut flickered and she blinked more or less strong in almost all Mittelstellungen between full and minimal. On a phase cutting dimmeroffinitially between 4.5 to approx. 0.5 Watt (maximum dimmer/lamp) infinitely them made, flickered center position but in a certain. The maximum brightness, as it was possible with a pure switch that could be achieved with any setting. Here estimated about 10 percent of the luminous flux “lost”.

At “Minimum” it became again bright

I saw a strange phenomenon for a long light duration: suddenly the minimum setting of the dimmer light was brighter and moved 2.2 Watts instead of 0.5 after all. At subsequent gradual turning up the dial brightness and power consumption reduced, to rise again at another point. This is not just a dimmer control logic, which is the average consumer immediately – mildly.

Several brands have developed clever Vorschaltelektroniken and worked hard to of dimmer compatibility of LED lamps in the past few months. The complete absence of such stabilizing components although undeniably has advantages (less heat, no switching delay), is bought but in everyday use obviously with too many disadvantages.

My test result

The E27-Segula lamp is called “Premium” and sells fairly expensive, the factory specifications and current EU regulations can not even meet completely – not to mention higher demands on the quality of light and dimming.

“Three characteristics favour the Segula concept: the external resemblance to traditional light bulbs, the largely circular beam pattern and possibly also the very”warm”light color”. That will appeal to everyone but mainly because of the strange spectral distribution. There are only my five-step LED rating scale
a star.

The lit LED Candle

The dimmable Segula-E14-“Candle” nominally 136 lumens is built on the same principle as the E27-“Pear” luminous flux (equivalent to EU officially a 15-Watt light bulb). However, a recognizably different LED type lights up here and only in 40facher instead of 80facher copies. In the company’s online store, it is offered for 9.95 euro.

Also here (33 x 95 mm), weight (15 grams), color temperature (around 2600 degrees Kelvin) and angle (360 degrees) differ from traditional “incandescent candles”.

Information on lamp and packaging (right section) are not up to date: it lacks indication of origin (“made in…”), electrical power factor (according to website 0.98) and colour rendering index (website: “80 CRI”).Also, it uses the old EU eco-label that was replaced by an new “E-A++” scale on 1 September. According to my calculation would this led “Candle” with the nominal values on an energy efficiency index of 0.16, in the “A +”-level. Starting from the values it looks but less well.

On my test table as well as in the laboratory the power consumption was namely in all conditions on the official 2.7 watts. After approximately two hours showed my “Swinging” “energy meter” 4.2 Watts (on a dimmerlosen switch), in the laboratory of light measured approx. 3,5 watts.

How many hours of light are to be expected?

Also the difference of the life information on the packing and the online offering is odd: there are now 15,000 or 20,000 hours of light? There is agreement in Segula, after all, about the number of switching cycles can: more than one million have been.

After the activation of a simple switch lights the led “Candle” in any case, without noticeable delay, makes no sound and maximum 53 degrees is hot in continuous operation at the hottest point. Digital cameras and sensitive natures may register a slight flicker – here no capacitor apparently ensures a smoothing of the power supply.

The light color impression is like that E27 lamp: much orange, some green – actually the color distribution curves differ only slightly (Pdf download of the test protocol). The integrating sphere determined nearly 130 lumen luminous flux with a very “warm white” colour temperature of 2536 k and a “color peak” at around 604 nm.

Poor color fidelity

Work specifying RA/CRI 80 is not confirmed in the laboratory: the General color rendering index is only weak 71.7, the complete index of 14 measuring colors even lower. “Saturated red” is with the color fidelity on 11.6 ‘ to 49.7, at down at “Lilac violet” ‘Yellow saturated’ 55.0 and R12 “Saturated blue” on 42.4.

Because almost optimally fails even at this Segula lamp play “Leaf green” with 93.9, the luminescence conversion layer the chips from “Candle”, and “Pear” are likely to resemble very.

Nothing to put out there on the radiation characteristics: that is largely round and is in fact – as promised on the package – “ideal for table lamps”:

Better than the “pear” dimmable

The dimmer compatibility is somewhat better than at the E27-“Pear”. On a phase dimmers the E14 lamp can flicker-free and silent between about 3.8 and 0.5 watt control (each with power of the dimmer). Lowest position is hardly brighter than a wax candle. I have not observed any significant input and switch-off delay.

The same applies to the use of a phase-control dimmers. Here, the range was between about 3.3 and 0.5 Watt. However, the “candle” at minimum position was somewhat lighter; also not the maximum luminous flux could be retrieved at the highest level obviously. Here a dimmer with adjusting screw would be recommended so strongly in the range can be adapted to the led.

My test result

The E14 LED-“Candle” by Segula fulfills many product promise – with the usual tolerances: luminous flux, beam angle, color temperature, Dimmability. But these are just not all: power consumption and color fidelity differ significantly from the official figures. And because nearly 10 euros for a bargain price, there are prints on my LED rating scale. More than
two star unfortunately are not in there.

The white ceramic “Headlight”

A completely different construction site is the futuristic-styled, dimmable GU10 LED spot ‘made in China’ by Segula, which produces 320 lumen luminous flux officially from 6.8 Watts with four LED chips and in the Shop costs EUR 24.95.

‘6 W’ should you not get confused leave from the indication of the packing: the lamp imprint as well as the site disagree.The indication “300 lumen” in the online shop is wrong for this spot in turn told me the Segula sales on demand. He specified (right section)actually 320 lm – like on the package. Also the online picture of the lamp (with only three LEDs) corresponds to not my test copy, even though the article number 50613 is identical.

Of course here also the top cited Segula claim is not true – becauseno additional heatsink, no vulnerable electronics”. This LED ceramic spot has cooling fins in the lamp head as well as a ballast in the base. With 68 grams, it is so much more difficult than the two other Segula test lamps and approximately on the weight level of brand competition in this performance class.

The actual overall length (approx. 62 mm) is however slightly on the indication of the packing of various competitors (approx. 58 mm) (60 mm) and the. That may interfere with short light housings for unsightly protrusions make (picture left). And if white is really the most suitable color for retrofit installations, I venture to doubt.

That have a value on the lamp box is wrong, is, however, more likely to welcome: instead of 60 mm maximum diameter, that would be far too much for “PAR 16″ll2, are in truth only the usual 50.8 mm. The packaging must be revised anyway, because there is also the colour rendering index is missing (officially “80 CRI”) and no longer valid EU-label with the levels of “G” is used to “A”.

The head sits on six “legs”

Head and base of the spots are connected by six external cooling fins, in the white space in between the power protected with a flexible cover from the electronics to the LED chips runs centrally. This design is not suitable for use in moisture-prone exterior; is to be noted on the website.

The combination of lens and lenses in the lamp head is there in two versions – for 15 and 45-degree angle. The latter is largely similar to the characteristics of halogen spots and is my test object:

Started the lamp without any significant delay at the dimmerlosen desk and moved according to my “energy meter” around 7.1 Watts electrical power factor of 0.97 (officially 0.91). Power consumption rose steadily but in continuous operation and reached the whopping 8.9 Watts at me after about two hours. There was maximum 70-degree heat at the top of the spots. Touching is although not dangerous, but it is quite painful.

The best it works with adjusting screw

Significantly more economical, but also much darker the spotlights on a non-adjustable phase control dimmers presented itself: maximum of 3.7 watts this combination moved adjustable 0 Watts – so between half brightness and total darkness. In between, there was a noticeable flicker in some positions, also the light at lowest Dimmstufe was again bright (approx. 1 Watt). Delay extended up to a maximum around 0.5 seconds and was a slight whirring up good 15 cm distance. There is not a switch-off delay.

A phase dimmers seems the better choice for this Segula lamp. Him, she remained largely silent, flickered on any level, and was regulated between approx. 5.5 and 0.5 Watt. As well the effect, that the spot on lowest dimmer position (about 3.5 Watt) was again bright was similar as before to the variant with phase control the on and off delay. With an adjusting screw, you could get easily handle this phenomenon and probably only then take advantage of the full potential of brightness of the lamp.

Readings in the tolerance range

And how bright can she really be? The laboratory identified good 298 lumen lumen at a colour temperature of 2552 Kelvin and a “color peak” at approximately 609 nm (red-orange). Although not exactly equivalent to the manufacturer’s specifications, but still part of the tolerable range of series production. The General color rendering index stood at good RA 81; also the other six test colors were much better represented as with the circular radiant Segula LED lamps (Pdf download of the test protocol).

The spot only for “Lilac violet” with 54.7 and the particularly problematic for LED lamps color “Red saturated” with meager 3.9 made themselves notable weaknesses. Overall, this is a very good light quality that can satisfy in particular the friends of “warm white” halogen spotlights. The official equating it with a 50-watt Halo is okay, because the EU regulation that requires 300 lumens. The Stromsparpotenzial is something below the package specification calculated with a false power consumption by 90% approx. 85% -.

Starting of the measured values of Segula spot achieved an energy efficiency index (EEI) of around 0.24 – this is A of the new EU eco-labels for lamps with directional effect in the middle of stage. Life should be 20,000 light hours and over a million cycles, the color value deviation within the series is officially 6 SDCM.

My test result

The GU10 spot is the only lamp of Segula test trio, which is really close to their nominal values and as decent, sufficiently bright interior lighting. Leg of light and color create a passable and very “warm” imitation of halogen on it parquet. The fidelity meet no premium, but fully sufficient for living – and bedroom. Less than 25 euros of course are no competitive price more in this performance class because there are still brighter currently for good half. Still could be a good argument for the over-expenditure in Segula for some LED newcomers from among 2600 Kelvin color temperature. Therefore, there is much goodwill of my five-step LED rating scale

LED-Stern halbthree and a half stars.

Update 21.10: Unfortunately, the Segula spot drops after less than 100 hours of lighting (dimmed) everyday test operation negatively by irregular, short-time interruptions.Partly, it is completely dark for several seconds before he takes the service again. This can happen in the cold as well as warm to operating – probably so has nothing to do with a built-in overheat protection. Therefore, my rating would be invalid; for LED lamps not work, there is of course zero stars.