Power (W): 36/72; Power factor: 0,9; Voltage/Frequency (V/Hz): 170-250/50-60; CCT (K): 6500/3000; Luminous efficacy (lm/W): 69/71/73/75; CRI (Ra): 80; Life span (hrs): 15.000; Flicker-free; CE, KC certified, can apply for other standards as requirements; Warranty: 2 years; OEM accepted;