You can use it for diving works, underwater fishing, salvage operations, underwater archaeological work, teaching scuba diving.
It's also a perfect flashlight for outdoor activities, such as fishing, diving, swimming, hiking, sailing, caving, hunting and seeking survival without fear of rainy days.
Adjustable velcro strap fits every body's wrist and can keep your hands free.
With lanyard so that you can tie it to backpack or waist when no use.
Florescent color for easy finding underwater.

General Operation:
-Twist the bottom to the tightest level, you will get the brightest light.
-Twist left a little bit and twist it to tightest level, you will get a dim light.
-Twist left a little bit and twist it to tightest level, you will get a strobe light.
-Twist left a little bit and twist it to tightest level, you will turn off the light.

Important Notice:
Turn on the flashlight before diving(It is much easier to flood water into the flashlight as you couldn't screw the switch tightly underwater), make sure the flashlight's head and bottom are screwed tightly in case of water floods.
Don't drop the flashlight on the beach, in case the sand go into the switch.
Take out the battery if you don't use the flashlight for a long time.
Contact us if received damaged one.

Specifications:
Waterproof rating: IPX8
Lighting: 1200 lumen Max
3-Mode: High, Low, Strobe
Voltage: 3.7v
Net Weight: 119g
Size: 1.37x5.71inch
Wrist Strap: 1.97x12inch
Power Supply: 1*18650 or 3*AAA batteries

• UPGRADED XML T6 LED BULBS: This underwater flashlight is high lumen, ultra bright and long service life. A lifespan of up to 60,000 hours or more, no need to consider replacing the lights for the whole life.
• 3 BRIGHTNESS MODES: High, Low, Strobe. Rotate the tail cap to change modes. More practical for under water sports, submarine or boat use. Powered by 1x 18650 rechargeable li-ion battery (include) or 3x AAA batteries (not include).
• DURABLE & IPX8 WATERPROOF: Made of hard aviation aluminum alloy head and fluorescent yellow ABS body, the scuba diving flash light with 6 O-rings to enhance waterproof performance. It can submerge in water and survive 20 meters underwater. It's more waterproof than most flashlights if used on land.
• PORTABLE & WRISTBAND DESIGN: This waterproof flashlight is lightweight, pocket size and easy to carry. Wrist strap design can free your hands. Also you can hang it on bcd with lanyard. Widely use for snorkeling, skin diving, fishing, caving, tidepooling, lobstering, crabbing, spearfishing, kayaking, swimming, sailing, camping trips, underwater exploration, marine life observation etc.
• PACKAGE CONTENTS: 2x scuba dive flashlights; 2x 3.7v 2000mah rechargeable batteries (random color); 2x USB smart battery chargers; 2x battery sleeve tubes; 2x AAA battery holders (AAA batteries excluded) ; 2x adjustable velcro straps; 2x lanyards; 1x user manual.

Package Contents:
2 x Diving Flashlights
2x Rechargeable Batteries
2x Wrist Straps
2x Lanyards
2x USB Battery Chargers
1x Instruction