Power (W): 10/20; Power factor: 0.5/0.9; Voltage/Frequency (V/Hz): 100 �· 277/120/220�·240; CCT (K): 3000/4000/5000/6500/8000; Luminous efficacy (lm/W): 110/120/130/150; CRI (Ra): 80/90/Sunlike; Life span (hrs): 30,000; Option: - Glass with diffuser film to prevent glass break - Glass with powder coating: Powder coating finish to ensure high-quality appearance, durability and low light decay; Flicker-free; CE, KC certified, can apply for other standards as requirements; Warranty: 2 years; OEM accepted;