Nitefighter BT40S LED Bicycle Light is a wide beam and high brightness mountain bike front light. Utilizing four Cree XP-G2(R5) LEDs， four brightness modes， max output 1600 lumen. BT40S model is the ideal illumination gear for mountain biking， touring， commuting， etc.











Main Features:
Utilizes four Cree XP-G2 neutral white LEDs， max 1600lumens output
Powered by four BAK 18650 rechargeable Li-on batteries， 7.4V 5200mAh( not included )
Uses high quality optical lens with a wide beam angle
4-Mode electronic Switch-Low-Med-High-Turbo
Digitally regulated output-maintains constant brightness
Overheat protection function
4 Color and 5 mode LED indicator displays remaining battery capacity
Quick to attach and detach using O-ring mounting straps sized for 20mm-35mm handlebars
Made of durable aircraft-grade aluminum
Premium type III hard-anodized anti-abrasive finish
Water resistant: IPX-6

Operation:
1.Press the tail button repeatedly to change brightness to 30%-50%-75%-100%
2.Press and hold the tail button for 0.8 seconds to turn off the light from any mode
3.Overheating protection: BT40S led light will accumulate a lot of heat when it is working in turbo output. To avoid overheating， the flashlight will automatically transfer into the high brightness level when the case reaches a certain temperature