LED Luminaries

LED news and insight from our technology editor Steve Bush, who has been messing with LED lighting for more years than he would care to remember.

200mA Lumileds lighting LED, and an even smaller one

22may13Lumileds 3535 4014 314Lumileds has unveiled the Luxeon 3535 2D, which has two LED die in a 3.5×3.7×0.8mm package.

Efficacy is claimed to be up to 140 lm/W (4,000K, 100mA (6.1V) 25°C solder pad) and minimum CRI is 80 across the 2,700-6,500K range.

“Versions with CRI 70 for outdoor applications and CRI 90 for high end indoor applications are planned,” said the firm

According to the firm a ’50W’ PAR20 lamp can be achieved using only 4 LEDs and “a 40W A19 lamp that previously required 14 LEDs can now be created using only six.”

Claimed life is up to 25,000 hours at 85°C and 150mA.

Oddly, for all colour temperatures, the data sheet feels the need to defines R9 as “>0″.

At the same time, it released a small rectangular (4×1.4×0.7mm) LED called a 4014. “designed to specifically to address linear and omnidirectional lighting applications such as under-cabinet and cove, refrigerator lighting and the retrofit LED market”.

Following on from the R9>0 comment above, the 4014 data sheet proclaims “tested and binned hot at Tj = 25ºC and 30 mA DC”.

There is one device in the range: 4,000K, 12 lm (10min) at 30mA (2.9V) and 22 at 60mA 25°C.

Delivered in a 4.0×1.4×0.7 mm footprint, the LUXEON 4014 line can achieve an efficacy of 160 lm/W at 4000K and CRI of 80.

Projected life to 70% is 30,000hr.

Tags: data sheet, efficacy, indoor applications, lighting applications, outdoor applications

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