Power (W): 400/500; Power factor: 0.9; CCT (K): 3000/4000/5000; Luminous efficacy (lm/W): more than 130 lm/W; Life span (hrs): 30,000; IP66 Options: - Voltage (V): 100�·277/120/220�·240 - Beam angle: 35�°/ 90�°/ 120�° - Driver: Isolated/Non-isolated Flicker-free; CE, KC certified, can apply for other standards as requirements; Warranty: 2 years; OEM accepted;