Ultrafire WF-502B 1000 Lumens LED Flashlight Small Pocket Torch Black Kit

UltraFire - "Light up to future!"

-Item was made of XPE G3 LED chip, up to 1000 Lumens, 100,000 hours lifetime.
-Durable aluminum alloy material: aircraft grade alloy, anti-abrasive coating.
-5 mode outputs, High>Mid>Low>Strobe>SOS, suitable for outdoor camping,hiking.etc.
-Toughened, ultra clear convex lens, with anti-reflective coating.
-Safe and water resistant: Highest water resistant level of IPX-6. Works in heavy rain (Do not submerge in water).
-Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent.

Specification:
-Brightness: 1000 Lumens Max
-Special Features: Tactical
-Modes: 5 Modes: High>Mid>Low>Strobe>SOS
-LED lifetime: 100,000 hours
-Switch type: Tail cap switch
-Meterial: Aluminium Alloy
-Size: 5.24 x 1.3 x 1 inches
-Net Weight: 3.77 oz (107g)
-Color: Black

Package contents:
1 x UltraFire WF502B 5 Modes flashlight
2 x 18650 3.7V rechargeable battery
1 x Wall battery charger

How do you change the modes on this flashlight:
1.Fully depress the on off switch completely twice within 3 seconds
2.Just a light press to bounce the button