Highlights: As is made up of aluminum alloy material, the casing of the flashlight is very firm & durable. After a special oxidizing procedure, it avoids sleeking & rubbing to make it more comfortable in your h&. With the water-proof design, it deals with a nasty wild environment easily. With a hanging string at the end of the flashlight, it is easy to take along. The lifespan of the LED is 10, 000 hours, & the brightness output is very high, a good choice for outdoor activities. Specification:LED Power (W): 3w Colour Temperature: 6500-7000 K Brightness: 150LMFunction Mode: 1 Mode Battery: 3 AADimensions (Cm): 11 3.1 3.1 Shipping Weight (g): 75.4 Package Contents: 1