Review: LEDON-AR111-LED Spotlights

The new, non-dimmable, 13 Watts strong LEDON-AR111-LED spotlight with G53 socket – in size and brightness has professional dimensions anyway, but also at the quality of the light. A detailed test with interesting laboratory data.

First of all: Who is so far satisfied gave with moderately bright Ra-80 LED spots for 5 to 7 euros, for which this 13-Watt LEDON spotlights with sturdy, grey/black metal housing, plastic lens optics and around 50 euro EIA would be incomparably more expensive revelation, which makes the way back almost impossible. Its brightness and quality of light are too impressive compared to the usual “Butter and bread”-LED lamps.

In particular two dates on the top of the packaging clearly that even before the first usage: RA = 95 and 1700 candela (photo left). The “General color rendering index” is therefore already very close to the halogen model (RA 100); the maximum light intensity exceeds that of many 50-watt low voltage Halo spots with similar beam angle (approx. 40 °).

Such standard spotlights with 111 mm maximum diameter and G53 / 12-volt socket are intended above all for recessed ceiling luminaires with upstream transformer in the commercial, public, or very demanding private sector, fit but also in low-voltage cable systems or special and often unfortunately also pig-expensive designer lights.

Even in continuous operation only moderate temperatures

With the State-of-the main square and thermal problems of the more common, but much more compact GU5. 3-LED spots the great AR 111 lamps must not fight. That’s a good thing, because often they shine in the professional use at least eight hours at a time and should it suffer no premature heat death.

The LEDON lamp is not to worry about that: after four hours steady I have measured maximum 50 degrees on the hottest part of the housing (in each position respectively above) and CA. 30 ° at the bottom with an infrared thermometer. The nominal lifetime of 25,000 hours of lights and 100,000 switching cycles should be (see packing details right) realistic.

For the test was the non-dimmable spotlights with me on a “Meanwell LPF-60 d-12” transformer 12 volt DC sucking, he tolerates but also alternating voltage (Pdf list of recommended transformers). After the turn he settled time up to full brightness; maximum half a second When switching off, the centrally-mounted LED module slightly further shone still two to three seconds, until the buffer capacitors of ballast were empty sucked.

I heard no annoying buzzing noise during operation – in the warm, “stable” condition, my hobby gauge registered 13.6 Watts in power consumption and a electric power factor of 0.48 (each including transformer). Which coincides largely with the manufacturer’s specifications (Download pdf of the data sheet). In the laboratory of my cooperation partner “David communication” remained the spotlight both on 12-volt DC (DC)-as alternating current (AC) below 13-Watt par: here was respectively at the close of 11.9 Watts (NET, without transformer), there was a good total power factor from 0.72 to the AC transformer.

Less lumens than promised by LEDON

According to LEDON the spotlight to a total 850 lumen luminous flux supply with a half value angle of 40 degrees. within the lamps with directivity of the EU given measurement angle of 90 ° whether 780 lumens – that is also the value, is on the packaging. (Update 18.11:according to information by LEDON he is determined by the measurements of 50 lamps after a day of continuous operation.) The laboratory measurements remained after two hours ‘Swing’ on both transformer types (AC/DC) but clearly including: total 804 lm, lm 697 within the 90 ° angle (Pdf download of the test protocol).

For this, the measured half-value angle with around 38 degrees was very close to par (Download pdf of the dispersion diagram). In practice, you get two main beam as the light picture left shows with transition to a sloping roof to the wall: A very wide, but also weak directly at the light outlet and a relatively narrow, very bright and far-reaching.

The light / dark boundary is not as pronounced and defined how many LED spots, but recognizable focuses on the dispersion of the halogen models – with a certain portion of light beyond the main lobe. Consistent with the perceived light color, which is even incandescent lamps fans very well can befriend.

Fidelity has also LED skeptics

This is just for displaying illuminated colors, objects, or parts of the skin: no trace of the LED usual red weakness, to see nothing of unpleasant blue or pink shades. My standard color photo with a site Ducati 916 in miniature against a white background can convince even militant LED critics (“cloudy”, without post-processing white balance):

And because even the display of my digital camera showed an absolutely flicker-freepicture, the LEDON AR111 Spotlight even for photo or video purposes is recommended, if “warm white” light with about 2700 Kelvin color temperature is required. This looks really “nice homely” and keeps the rich colours despite the color temperature shift in the direction of “Yellow-orange” as such recognizable.

The Labs confirm this subjective impression: 2650 Kelvin, RA 96.8 as an average of the first eight (pastel) measuring tones, 95.2 average of all 14 reference colours – including strong 82.7 for R9 (“red saturated”) and excellent 98.5 for R13 (skin color “pink”). Thespectral diagram (pictured below) has its highest peak in the orange-red area 635 nanometre wavelength, just a small hill in blue, and in between a very steady course without big “dent”:

In particular the curve sufficiently far in the direction of 800 nm suggests that glow in the LEDON spotlights not only high-quality “warm white” LED chips, but to complement a red version. Such details fall but under it the manufacturer’s trade secret and were not betrayed me also on persistent demand.

Very far-reaching light Mace

To assess the potential reach of approximately 1700 candela on the zero-degree axis, even a very large private room is too small. Because the difference between flux-nominal and measured value does not change. I had to go for it again at night out lightand could provide there in 20 meters distance reading suitable for brightness.

Way, the many different colors of garden plants presented well distinguishable and similar to realistically depicted as in the light of a deep, yellow red Sun. Too bad that this radiator fit has no outdoor protection and therefore only indoors or similarly sealed lamp housing be used may.

But, for example, the operators of restaurants, hotels, shops, or offices in representative rooms with high ceilings can fully enjoy. There still lots of good light to below also comes with almost 700 lumens, if top – involved instead of 50 – or 75-Watt-halos – 13 W LEDON AR111 lamps. Depending on the distance a copy very neatly illuminates six to ten square metres of space. Best not too many direct beam spots schedule, because that first unnecessary costs power and secondly, the light can be not dimmed. Inserted mainly indirect lighting that puts into perspective something himself of course.

My test result:

Suspicion may be obvious that I praise a LED lamp here, because is the manufacturer of one of my blog advertising partners. But never knowingly to take into consideration and not deny it too, that measured in the test sample, the luminous flux in warm condition remained unfortunately about 10 per cent below the official face value. In practice this is hardly noticeable. The New LEDON AR111 Spotlight is stable built professional goods, offers extremely bright, deep, comfortable, very color-faithful, halogen-like light, works silently and flicker-free, saves at least 80% power and this pretty “cool”.

Yes, he is with around 66 LM/w not very efficient – a technically hardly avoidableconsequence of high light quality and “warm white” color temperature. The upper part of the housing is not quite as bright silver shiny as shown on the Pack figure in reality. You can Dim the 13 Watt spot him pay with approx. 50 euro also quite expensive, so is therefore prohibits the highest “fives” level of my new and very strict LED test scale The highest rating for non-dimmable lamps would be “Four” – because of the measured lumen shortcomings, there is a small deduction for the LEDON spotlights and a total
three and a half stars.

 

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