



F21-3500 Kraken Dive Torch
The Kraken is a high-performance dive torch for professionals and enthusiasts. Built with a durable aluminum body and hard-anodized finish, it withstands harsh underwater conditions. Its intelligent all-in-one mechanical charging switch ensures effortless operation.
With 3500 lumens and a 550-meter beam range, it offers exceptional brightness. Enjoy 7 hours on high mode or 72 hours in eco mode. Waterproof to 120 meters (IP68), the F21 is reliable for extreme dives.
Durable, efficient, and versatile—perfect for onboard tasks, safety, and diving.
Bright. Tough. Enduring. Your ultimate dive companion!


700 Lumens Bright Light
Break Through Darkness
— Fitech IP68 Flashlight for Boat Since 2008—
Functional Operations
Turning on the flashlight (2 operation methods):
1. Method 1:
• Press the switch for about 0.5 seconds to turn on the flashlight.
• The brightness levels cycle from high to low.
• Click the switch successively to cycle through the modes:
High Bright Gear → Medium Bright Gear → Low Bright Gear.
2. Method 2:
• Double-click the switch to turn on the flashlight.
• The brightness levels cycle from low to high.
• Click the switch successively to cycle through the modes:
Low Bright Gear → Medium Bright Gear → High Bright Gear.
Note: • When the flashlight is on, the switch indicator shows blue. • If the battery level drops below 20%, the indicator will flash to remind you to charge the flashlight promptly.
Note:
• When the flashlight is on, the switch indicator shows blue.
• If the battery level drops below 20%, the indicator will flash to remind you to charge the flashlight promptly.
When the flashlight is on:
• Ultra-Bright Mode:
Double-click the button (press quickly twice) to activate the ultra-bright level.
• Strobe and SOS Modes:
Triple-click the button (press quickly three times) to switch to special modes.
Click the switch to cycle through the following:
Strobe → SOS → Self-Search Function (with the switch indicator always on).
Turning off the flashlight:
• Press the switch for about 0.5 seconds, then release it to turn off the flashlight.
Usage Precautions
• Fully charge the flashlight before using it for the first time. Recharge it promptly after each use.
• After charging is complete, disconnect the charging cable and keep it out of reach of children.
• Avoid shining the light directly into people’s eyes, as strong light can cause permanent damage.
• During transport, ensure the button switch is not accidentally pressed to prevent the flashlight from turning on and draining the battery.
• Do not drop, impact, or throw the flashlight.
• Do not disassemble the lamp head assembly or the switch, as this can damage the seal.
• Do not dispose of the lithium battery in fire.
• Lithium batteries are recyclable. Dispose of used batteries properly according to local regulations.
Flashlight Maintenance
• After each use, wipe the flashlight with a clean, soft cloth.
• If the flashlight is exposed to seawater or corrosive liquids, rinse it with clean water immediately and dry it with a hair dryer.
• When not in use, remove the battery and store the flashlight in a cool, dry place.
• If not used for an extended period, recharge the battery every 6 months to maintain performance.