098 TECHNOLOGY / BENCHTEST
THE PARAMETERS What we asked for...
Due to the vast number of LED module variants available it was decided to evaluate a small subset based on a light engine output of 1000 lumens with a Warm White (3000K) colour temperature. • The overall efficiency figures included driver and thermal losses but excluded any optical losses due to reflectors, diffusers etc. • All measurements were taken when the modules were deemed at steady state (ie; after they had warmed up and small lumen output deviation was observed). • The modules were tested as supplied by the manufacturer along with recommended heatsink and control gear. • The cost of each module is based on a ‘guide price’ for a one-off order of 1000 modules in isolation. This was done to determine a price:performance ratio which is one of the most important factors required by the end-user market today considering the austerity budgets of most companies. Cree’s sample was the only module that included a built-in power supply. • All of the modules appeared to be manufactured to a high standard. • Only one module sample was tested from each manufacturer so caution has to be undertaken when interpreting the results.
• No lifetime data was obtained on the modules and therefore it was not possible to define lumen maintenance or other lifetime characteristics. • See table overleaf for datasheet figures.
XICATO XSM 8030/1300 LUMINOUS FLUX: 1171 EFFICACY: 68.95 LM/W CONSUMPTION: 17W RA: 81.5 R9: 22 CCT: 2941 COST: $39 (not inc heatsink/driver) LM PER $: 30
The Xicato module is one of two remote/ cold phosphor technology based LED modules, but as can be seen from the PSD shown, it has a different curve from all of the other phosphor based LEDs. The advantage of Xicato modules are such that the colour consistency between modules is very high and these modules are stated to have tolerances less than 2 standard McAdams ellipses. A further advantage of the Xicato module is it is one of the small- est of the LED modules tested making it ideal for spot lighting and retail applica- tions. These modules seem compact and are easy to integrate into fixture design.
PHILIPS FORTIMO DLM1100 LUMINOUS FLUX: 1215 EFFICACY: 79.3 LM/W CONSUMPTION: 15W RA: 78.8 R9: 4.6 CCT: 3070 COST: $93 (not inc heatsink/driver) LM PER $: 13
The Fortimo module is the second module that employs remote phosphor technolo- gies where the phosphor is placed away from the LED die. The module is slightly larger than the other LED modules which makes it ideally suited for larger fixture applications including use as the core light engines in downlighter based fixtures. As the remote phosphor provides an even light distribution it will be easier to up- grade the modules in the future without the need to change optical designs as these will remain constant. The system also maintains tight colour consistency within 3 standard MacAdam ellipses.
THE PARTICIPANTS What we got...
All different shapes and sizes... PHILIPS FORTIMO DLM1100
XICATO XSM 8030/1300
GE INFUSION
CREE LMR4
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