... high brightness 2) 4w / 400 lumen / MCOB 3) CE,ROHS,UL,SAA 2013 Lastest MCOB LED Spotlight warm white led bulb, 4w modern lights ... cool white), 70-80Lm/W(warm white)Luminous Flux: 280-320LM(Warm White); 320-360LM(Cool White)Color Temperature: 4500K-6500K(cool white),2700-3500K(warm white ... , especially for galleries and courtyard.2, Suitable for spot light in art display, museum jewelry counter.3, ...