... maintenance: 3000hrs < 3%Power Factor > 0.5Color temperature (K): 2700K, 5000K, 6400KBeam angle:25°,38°,45°,60°Operating Temperature:-10°C ... °8, Certification, CE and ROHS approved9, warm white, 3300K, Daylight, 5000K, cool white, 6500K10, Good thermal condustion, energy saving 90% than ...