Epistar reports 110 lm/W warm-white LEDs
Epistar has developed multi-chip packages combining red and blue chips, to simultaneously achieve high color rendering index (CRI) and high efficacy.
|Packages without phosphor|
While efficacy and CRI are two of the major performance metrics in the lighting industry, these two merits usually work against each other. However, Epistar says that its approach enables improvement of these two metrics simultaneously.
The 1W package has a CRI of 90 and efficacy up to 110lm/W for lower voltage (15V) operation, while the 3W package has a CRI of 90 and efficacy up to 105lm/W for higher voltage (50V) operation. Both these packages have a CCT of around 3000K.
The 1W lamp combines several of Epistar’s blue and red LED chips in the same package. The power consumption and total lumens can be adjusted by modifying the combination of LED chips.
These packages can be used in E12/E14 candle lights, E26/E27/GU10 light bulbs, PAR lights and other applications for high-efficacy, warm-white light.