Step 1

Walk this video at http://youtu.be/VIDh8SxQBfM to have a rough idea how strong is CREE Q5 and XML-T6 LED bulb.

Step 2

Look at the photo below to choose the size of your torchlight

Step 3

Post any question that you have in mind. It's so easy !!

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Ultrafire WF-502B Luminus SST-50 LED (3-Mode) Flashlight (with 2 Reflectors - Smooth and Textured)

Features:  

1.Excellent waterproof,suitable for outdoor environment, adverse weather conditions.  

2.The body of this flashlight is built of aircraft-grade aluminum alloy, and it has a very solid construction. The flashlight is coated with type III hard coat anodizing that not only provides excellent surface look and feel finish but also protects body against bruises scratches.  

3.This torch uses of one Luminus SST-50 LED , producing very bright beam of light. 

4.This flashlight uses a textured reflector (rather than smooth reflector). The beam from a textured reflector is more even, with a more gradual transition between the hot spot (the center of the beam) and the spill (the periphery of the beam).

Specifications:

Brand: UltraFire

Model: WF-502B

Emitter Brand: Luminus SST-50 LED

Light Color: White

LED: 1

Brightness: 850 lumens maximum brightness (manufacturer rated)

Battery Configurations: 1 x 18650 battery (Not included)

Input Voltage: 3.7~4.2V

Modes: 3

Mode Arrangement: Low 20% brightness - high 100% brightness -- Strobe

Switch: Clicky

Switch Location: Tailcap

LED Lifespan: 100,000 hours

Material: Aluminum Alloys

Lens: Coated Glass Lens

Reflector: Aluminum Textured/ OP Reflector & Aluminum Smooth

Runtime: 2 hours( depends on battery capacity and mode selection )

Effective Range: 200 m

Dimensions (L x Head Dia):132 x 33.5 mm / 5.20 in x 1.32 in

Weight: 112 g