Gonex&reg; 5W 3.7V 6.6Ah 6000mAh KL6LM Led Mining Headlamp Hunting Cap Lamp 40000Lx IP67 with Home & Car Charger This cap lamp LED light is a new type of environmental-friendly lamp, which is range 500 meters Rated voltage: 3.7V; Rated capacity: 6.6Ah;Battery life: &gt;500 cycle time Lighting time: &gt;12H (main illuminant); Illumination: 35000-40000Lx (start of lighting) LED current: 0.9A (main illuminant) 0.4A (the second illuminant); LED life: 50000hours Amperage of charge: 0.6A (average); Weight: &lt;500g; Ambient Temperature: -15~40 C