CS105 LED Streetlights Suit Huizhou Case Study 20150330 ©2015 Lumileds Holding B.V. All rights reserved.

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“Huizhou ForYou Optoelectronics invested in new equipment so that we could

switch over to SMT production and therefore raise the yield and productivity of our

luminaires.”

— Mr. HuiQing Deng, Vice GM

Huizhou ForYou Optoelectronics

According to Huizhou ForYou Optoelectronics, Lumileds was

chosen to partner on this project due to its superior technical

support and application support. The LED emitter used, the

LUXEON T, and the specifications it meets, were only the first

steps in luminaire development. Consistent delivery of these

specifications was ensured by both design verification at

the component level and alignment of LM-80 data between

Huizhou ForYou Optoelectronics and Lumileds. Huizhou

ForYou Optoelectronics further performed burn-in testing

of all emitters and sample testing of system performance

parameters for quality control.

Results & Benefits

LUXEON T LEDs feature an L70 lumen maintenance lifetime

of 60,000 hours relative to 15,000 hours for HPS. HPS bulbs

also typically deliver an efficacy of 60 lm/W versus 95 lm/W at

the LED luminaire level for a 3000K luminaire at 70CRI. Color

consistency of the emitters is delivered within a single 3- or

5-step MacAdam ellipse.

Another way that reliability and yield of these luminaires

was improved was by upgrading the SMT (surface mount

technology) assembly equipment, solder reflow ovens

and x-ray inspection systems used by Huizhou ForYou

Optoelectronics. By improving the SMT process control,

functional yield was even more optimized.