After late last month reporting record luminous efficiency of 216lm/W for a warm-white LED with a high-voltage chipset, Taiwan’s largest LED chipmaker Epistar Corp of Hsinchu, Taiwan has launched three LED chipset products - ‘Standard Set’, ‘Premium Set’ and ‘Deluxe Set’ - with packaged luminous efficiencies of 100, 120 and 150lm/W, respectively. All have a color rendering index (CRI) of >85 and correlated color temperature (CCT) of 2700-3000K.
The 100lm/W Standard Set has a low-voltage chip platform (V10S for blue and AX12 for red) with recommended operating current of 30mA per chip and three chips in one package (3528 PLCC), yielding output of 0.27W and 27lm. Targeting final system efficiency of more than 65lm/W, the Standard Set is intended as a 40W bulb and T8 tube replacement.
The 120lm/W Premium Set has two versions: a low-voltage chip platform (V11A for blue and AX12 for red) with recommended operating current of 30mA per chip and a 3528 PLCC package (with three chips in one package), yielding output of 0.26W and 31lm; and a high-voltage chip platform (HV45B for blue and HA40 for red) with recommended operating current of 20mA per chip and four chips in one package (5050/6565 ceramic or 7090 PLCC), yielding output of 3W and 360lm. Targeting final system efficiency of more than 80lm/W, the Premium Set emphasizes high package efficiency with affordable cost for 60W bulb and high-performance T5 tube replacement.
The 150lm/W Deluxe Set has a high-voltage chip platform (FV60 for blue and HA40 for red) with recommended operating current of 20mA per chip and four chips in one package (5050/6565 ceramic or 7090 PLCC), yielding output of 2.7W and 405lm. Targeting final system efficiency of more than 100lm/W, the Deluxe Set emphasizes high efficiency with fair cost for 75W up bulb replacement, high-performance PAR, and downlight markets.
Epistar says that, while dedicating itself to higher lm/W luminous efficacy, it is also committed to delivering competitive lm/$ value.
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