mining helmet light 1; Materials:Aviation alluminium 6061-T6 2; Led light source:High power Cree-Q3 LED(3W) 3; Size:93mm*21mm*20mm Weight:100g 4; Battery:3-P7-AA battery 5; Driver circuit:3 work modes(100% of brightness,30% of brightness,flash) 6; IP rate:IP68 Work voltage:4.5V,Work current:450mAh 7; Lighting range:250m 8;surface anodizing:hardcoat anodize 9; Flashlight Luminious:100% of brightness is 160LM,30% of brightness is 100LM. 10; Color:light black Switch:Button on head. 11;Spot diameter:the diameter is 7-8cm at 1 meter of distance. 12; Lighting time:100% of brightness is used by 200minutes,30% of brigtness is used by 600minutes.