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Nitefighter BT21 1800LM 2 LEDs Cree XM L2 Water - resistant Mountain Bike Lights
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Nitefighter BT21 1800LM 2 LEDs Cree XM L2 Water - resistant Mountain Bike Lights

- Black
128582801

( Neutral White Light 5 Modes 4 x 18650 Battery )
36.32
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NITEFIGHTER BT21 MTB Light
BT21 is a compact and high brightness mountain bike lights. A quantum leap in bike lights, resulting in an all-in-one illumination tool that combines high-output LED technology and variable lumen output. It also has a built-in strobe light, plus a gauge that tells you how much battery power is left. BT21 is the ideal illumination gear for mountain biking, touring, commuting, etc

Main Features:

Neutral white LED chip
Utilizes two Cree XM-L2 neutral white LEDs, max 1800 lumens output
IP-65 water-resistance
Be able to protect against water jets, no problems with the rain
5 Modes electronic switch
Low - mid - high - turbo - strobe
Compact size
52.8mm (width) x 24.5mm (depth) x 37.5mm (length) super tiny size makes it portable to carry around
Power capacity indicator
4 color and 5 modes LED indicator displays remaining battery capacity, tell you when to replace batteries
Thermal heat fins combined with a temperature sensor
Protects from over heat and maintains digitally regulated constant output brightness
Air-craft grade aluminum and premium type III hard anodized anti-abrasive finish
Absolutely satisfy with tough environment of MTB illumination
PMMA lens
Uses high quality PMMA optical lens to guarantee the great lighting effect even in long distance
● Quick to attach and detach using O-ring mounting straps sized for 20 - 35mmhandlebars
Power supply
Powered by BAK 7.4V 5200mAh 18650 rechargeable li-ion battery pack(battery pack and charger are not included )

Warm tip: Battery pack and charger are not included.

Specification

Product Details

Headlight Brand: Nitefighter
Model: BT21
Emitters Quantity: 2 x Cree XM-L2
Luminous Flux: 1800Lm
Feature: Can be used as headlamp or bicycle light,Dual Light-source,Power indicator light
Function: Camping,Hiking,Walking,Night Riding,Exploring,EDC
Mode: 5 (Turbo; High; Mid; Low; Strobe)
Battery Type: 18650
Waterproof: IP-65 Standard Waterproof
Power Source: Battery
Reflector: No
Lens: PMMA Lens
Body Material: Aircraft-grade Aluminum Alloy
Processing Technology: Aerospace Grade Aluminum Body with Anti Scratching Type III Hard Anodization
Available Light Color: Neutral White
Color: Black

Dimension and Weight

Product weight: 0.065 kg
Package weight: 0.21 kg
Product size (L x W x H): 5.28 x 3.75 x 2.45 cm / 2.08 x 1.47 x 0.96 inches
Package size (L x W x H): 25 x 17.5 x 8 cm / 9.83 x 6.88 x 3.14 inches

Package Contents

Package Contents: 1 x Nitefighter BT21 MTB Light, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line
Nitefighter BT21 1800Lm 5 Modes LED Bicycle Light 2 x Cree XM L2 Water-resistant 18650 Mountain Lamp- BlackNitefighter BT21 1800Lm 5 Modes LED Bicycle Light 2 x Cree XM L2 Water-resistant 18650 Mountain Lamp- BlackNitefighter BT21 1800Lm 5 Modes LED Bicycle Light 2 x Cree XM L2 Water-resistant 18650 Mountain Lamp- BlackNitefighter BT21 1800Lm 5 Modes LED Bicycle Light 2 x Cree XM L2 Water-resistant 18650 Mountain Lamp- BlackNitefighter BT21 1800Lm 5 Modes LED Bicycle Light 2 x Cree XM L2 Water-resistant 18650 Mountain Lamp- Black

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Customer Reviews

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  • zuzuge
    Yes (0) Color: Black
    Nitefighter BT21
    Excellent light. The quality is super. Tint is wonderful, I like it better than cool white, because neutral white is better to see pits on the road.
    the driver is very efficient. Low mode is quite usable and economical from the point of view of power consumption and is only 0.1Amps, medium less than 0.4A, high - 1.23A and in turbo mode - 2.33A. Moreover in standby more circuitry consumes only 0.02mA, what means that you can leave it connected to the battery almost as long as you like without worry of battery discharge.

    Also it is really waterproof. What is very important for overall reliability is temperature management of the device, which is also perfect. Device shell construction designed like normal heatsink, therefore heat dissipation is perfect. The second important aspect is heat management of the driver circuit. Pulling almost 20W energy in small closed non-ventilated area requires special efforts what is also carried out - PCB is filled with heat conductive compound what allows heat transfer from the PCB components to the shell body.

    Overall great buy, worth every penny in my opinion.
    Suggestion
    The 2 screws that holds pcb is crappy but not a big problem. Important is they MUST be screwed down to full way and their upper surface smooth to not prevent LEDs aluminum heatsink to lay on the shell perfectly. Reasonable amount of heatsink paste also exist under the LEDs what is pros.

    Aug 15,2015

FAQ for Nitefighter BT21 1800LM 2 LEDs Cree XM L2 Water - resistant Mountain Bike Lights

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