Features:
Excellent waterproof, suitable for outdoor environment, adverse weather conditions.
The body of this flashlight is built of aircraft-grade aluminum alloy, and it has a very solid construction.
This torch uses of a CREE MC-E LED, producing very bright beam of light(750 lumens).
Internal wiring applies the high efficient booster circuit, and can utilize the batteries in the largest extent.

Specifications:
Brand: Ultrafire
Model: WF-501B
Emitter Type: CREE MC-E LED (6000-6500K)
LED Quantity: 1
Battery Configurations: 1 x 18650 battery(not included)
Voltage Input: 3.6V-4.2V   
Switch Type: Clicky/Clickie
Switch Location: Tail-cap
Modes: 3 Hi >Lo > Strobe
Brightness: 750 lumens maximum brightness
Continuous working time: About 1.5 hours
Bulb/LED Lifespan: 100,000 hours
Shell material: Aluminum Alloy
Reflector: Aluminum Smooth/SMO Reflector
Casing Color: Black
Light color: white
Dimensions (L x Head Dia. x Body Dia.): 13cm x 3cm x 2.5cm
Waterproof Design: Yes

Package included:
1 x Flashlight