Max. Light Output:Max Beam 500Lm±20% Power Switch: 1. Press for turn on 2. Light mode:High, Med, Low, Red, Red Flashing. 3. Press 0.8 sec. to turn off at any mode. ‧PERFORMANCE TEST WITH 3 PCS ALKALINE BATTERIES(ANSI FL1 Light Standard) High 500LM±20% 2.5H±20% Med 200LM±20% 7H±20% Low 20LM±20% 42H±20% Red 10LM±20% 12H±20% Red Flashing 80H±20% Accessory:Head strap, 3pcs x“AAA” Batt. Peak beam intensity:160cd±20% Beam Distance:25m±20% Impact Resistance:1M Description:LED Headlight Light Source:White COB LED and Red COB LED Power Source:3pcs x“AAA” Batt. Material:ABS / PC Size:67 X 37 X 47mm Net weight:58g Water Proof:IPX 4