Power (W): 25/50; Power factor: 0.5/0.9; Voltage (V): 100�·277/120/220·240; CCT (K): 3000/4000/5000/5700/6500; Luminous efficacy (lm/W): 110; CRI (Ra): 80; Life span (hrs): 25,000; Options: 0.6m/1.2m Flicker-free; CE, KC certified, can apply for other standards as requirements; Warranty: 2 years; OEM accepted;