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

- NEUTRAL WHITE LIGHT 128308201

( 5 Modes 4 x 18650 Battery Neutral White Light )
79.17
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Caution: The item will arrive on Nov. 7th!!!



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:
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
Neutral white LED chip
Utilizes two Cree XM-L2 neutral white LEDs, max 1800 lumens output
Air-craft grade aluminum and premium type III hard anodized anti-abrasive finish
Absolutely satisfy with tough environment of MTB illumination
IP-65 water-resistance
Be able to protect against water jets, no problems with the rain
PMMA lens
Uses high quality PMMA optical lens to guarantee the great lighting effect even in long distance
5 Modes electronic switch
Low - mid - high - turbo - strobe
Comes with Battery + Charger
Powered by four BAK 18650 rechargeable li-ion batteries, 7.4V 5200mAh, and our package comes with Battery + Charger for your convenient using
● Quick to attach and detach using O-ring mounting straps sized for 20 - 35mmhandlebars
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


Neutral white LED chip
Utilizes two Cree XM-L2 neutral white LEDs, max 1800 lumens output


PMMA lens
Uses high quality PMMA optical lens with smooth beam

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: 0.870 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, 1 x 7.4V 5.2Ah Battery Pack, 1 x 8.4V 2A Charger, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line, 1 x Storing Box, 1 x English Manual


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Customer Reviews

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  • cottonthemoth
    A good investment
    Nitefighter actually has US warranty support which is unheard of for a product like this at this price point. I haven't had to utilize them and hope to not have to but I've heard good things about them through other users on mtbr.com Now for the light and kit itself. Go ahead and buy the kit if you're even considering it. The battery pack is really nice compared to any China pack you'll get elsewhere and they use very high quality cells. The pack itself is waterproof and all of the wiring (even the extension) is very thick, low-resistance wiring that seems extra durable. The plug interfaces fit so tightly together that I can hear a sort of suction take place when I pull the plugs apart, and this is preferred over threaded connectors where you can damage your wiring in the event of a wreck where the wires get pulled on but can't unplug. I bought two at once and purchased some custom aluminum gopro base mounts for these from someone that machines them, and now I have one on my handlebars and another right smack centered on my helmet. I modded the helmet light by switching out the optics inside of it for 10 degree optics, resulting in more throw which is desirable for a head light so you can quickly see where you point your head. Unexpectedly, the light itself has O-rings and gaskets that protect the whole system from rain. I would trust it in a downpour, personally, but haven't had the chance to use it during such a time yet. The light has FIVE modes. one-two-three-four brightness settings, and after 4 it reverts back to the lowest setting.&nbs
    Suggestion
    I'd prefer just 3 stages of brightness personally but people like their customization. I personally like to touch my light as little as possible when riding. 3/4 brightness setting is perfect for most everything.

    Sep 22,2015

  • Tigris99
    AMAZING, JUST AMAZING!
    Cant say enough good things but Ill try to sum it up: First how it comes. In a REALLY NICE CASE!!! Solid, stout, top quality. Love that thing. I can fit bt21, the pack that comes with it, the bt40s or another light head, another pack, a small flashlight, and my gorpo hlemt mount clip (plus like the bacnds and velcro etc) all in the case. HAS A HANDLE TOO. Night riding kit all in one place always ready to go. -good solid 2.8A on turbo for output. Lumens I estimate about 1400 on turbo and fresh pack (remember manufacture rates prior to losses at optics) -nice mix of beams from frosted lenses. they dont hinder output AT ALL. - easy to find large button on top, great for helmet use -Light head quality is 2nd to none. Especially for the Price. - Battery pack is rated true on capacity and current supply. BAK cels are SWEET -Pack uses 20awg wire (MS size, the quality stuff) -optics are easy to change -2000mA charger, and a large quality one at that Included: Case with light head, battery pack, mounting bands, good instructions, helmet mount that actually uses velcro (finally one that does), role of cable strap velcro for holding wires to frame, charger, 20awg extension cable (for helmet mount but putting pack in backpack) AND THE CASE! This light is SO WORTH THE PRICE, Ill be owning another one soon.
    Suggestion
    Only a couple complaints and not really complaints, just my pickiness from the fast I customize all my lights. -22 awg wire from the lighthead. But shortt enough has minimal affect if any on performance. -machining on bottom of head for stock mount makes the custom gopro aluminum adapter mounts (you dont get one with the light) not easily compatible. have to make sure to get the right versions so they fit.

    Jun 01,2015

  • Patrik
    Nitefighter BT21
    It's easy to use and very portable. BT21 has strong battery, and it's great for mountain biking and downhill too. Excellent quality of light.
    Suggestion
    none

    Mar 30,2016

  • Ben Marshall
    Mr
    Build quality is excellent. Easily bright enough for mountain biking as either a bar or helmet light. Good weight, excellent price.
    Suggestion
    Would be nice to ship with gopro mount.

    Oct 03,2015

  • c
    Great bike light
    Very bright and easy to use. Tried many different lenses but ended using the original ones. Good quality battery.
    Suggestion
    none

    Feb 04,2016

  • Glenn
    Mr
    Excellent Quality. The Neutral light and the spread of the light is so much better then a bright white light beam, enables you to ride with more confidence. Great strong case for storage.
    Suggestion
    None!

    Nov 07,2015

  • Artur
    Хорошее качество по доступной цене
    1 цена 2 время работы 3 сборка 4 смотрится хорошо на велосипеде 5 2 года гарантии
    Suggestion
    пока нет

    Feb 03,2016

  • Martin
    Excellent for price
    low weight, compact, excellent light beam,good price, simple mounting
    Suggestion
    none

    Oct 18,2015

  • Mikhail
    Nice light
    Real solid piece. I am a roadie, not MTB rider and I use lights a lot for fall/winter riding after work. I attach battery on my stem and light to the flat part of the steering bar. Works like a charm.
    Suggestion
    None so far.

    Nov 19,2015

  • roi.fishman
    Good Product
    Build quality is good Battery capacity excellent Quick shipment as promised
    Suggestion
    can't have yet

    Aug 29,2015

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

Customer Questions & Answers

  • All(9)
  • Product Information(8)
  • Stock Status(1)
  • Payment
  • About Shipping
  • Others
Q

You say you have 33 pieces in stock. So if I order now I get one and it will ship in 2-4 days?

By Ken k Dec-02/2015 04:02:58

A
Thank you for your inquiry.
Yes, you are right.
Thanks in advance for your order.
Have a nice day.
Q

hello, which gopro adapter mount of your assortment is compatible to the BT21?

By patrick.b Sep-15/2015 15:25:10

A
Hi Patrick, for your inquiry, you can check the Gopro Adapters at here: http://www.gearbest.com/gopro-adapter-_gear/  Please purchase the Gopro Adapters based on your own bike. 
Thank your for your inquiry. Please feel free to ask further pre-sale questions.
Q

Is there still no possibility to have the product with the EU charger? If not, a) could you please contact the manufacturer and ask if they would be willing to start providing them also or b) could you recommend an adapter?

By Joona Sep-10/2015 12:25:40

A
Hi Joona, I am sorry that we don't have this product with EU charger to sell because our vendor didn't provide the EU charger version. For your inquiry, we kindly suggest you to use a converter with this item. Please check the converter here: http://www.gearbest.com/usb-gadgets/pp_168132.html
Thank your for your inquiry. Please feel free to ask further pre-sale questions.
Q

Hi, Which power lead is + . Inner or outer? Thank you, Jeff

By Jeffrey T Aug-28/2015 21:19:06

A
Hi Jeffrey, please kindly see the introduction on this post to know further more about this item at this link:
http://forums.mtbr.com/lights-night-riding/nitefighter-bt21-2x-xm-l2-nw-light-965949.html
Thank your for your inquiry. Please feel free to ask if you have further questions. 
Q

Hi, How much time can it hold with 1800lm and 1200lm Dror

By Dror Baron Jul-27/2015 19:38:23

A
Hi,we are sorry for the confusion. Do you mean it can last to how much time from 1800lm to 1200lm?  Or how much time to charge?
It depends on your using time. Sometimes it needs to be charging between 5-6H.
Q

Some questions: 1) Does this come with the charger/cells included or its only the head? 2) Is it in stock?

By Mountainking Jul-12/2015 09:03:37

A
Hi,it is available now and the package includes 1 x Nitefighter BT21 MTB Light, 1 x 7.4V 5.2Ah BAK Battery Pack, 1 x 8.4V 2A Charger, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line, 1 x Storing Box, 1 x English Manual.
Q

Hi, Is it possible to include a EU charger with this item when shipping to EU countries (except UK) ?

By Nuno Fonseca Jun-25/2015 17:33:36

A
Hi,you can use a UK adaptor to charge.
Q

hi, I have several batteries of 8.4v other bike lights I bought the TrustFire is battery and its connection to serve this NITEFIGHTER BT? Thanks Cleber

By Cleber Jun-22/2015 16:31:38

A
Hi,we are sorry toinform that it is not work because this light uses 4x 18650 battery.
Q

Hello, Does this item include a case for the batteries and a cable to connect to the light? Thank you.

By joe_kane Apr-30/2015 22:57:09

A
Hi Joe_kane,
For your inquiry, please kindly refer to the pacakge contents: 1 x Nitefighter BT21 MTB Light, 1 x 7.4V 5.2Ah BAK Battery Pack, 1 x 8.4V 2A Charger, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line, 1 x Storing Box, 1 x English Manual
Batteries is included with the product. Thank your for your inquiry.
Q

hello, which gopro adapter mount of your assortment is compatible to the BT21?

By patrick.b Sep-15/2015 15:25:10

A
Hi Patrick, for your inquiry, you can check the Gopro Adapters at here: http://www.gearbest.com/gopro-adapter-_gear/  Please purchase the Gopro Adapters based on your own bike. 
Thank your for your inquiry. Please feel free to ask further pre-sale questions.
Q

Is there still no possibility to have the product with the EU charger? If not, a) could you please contact the manufacturer and ask if they would be willing to start providing them also or b) could you recommend an adapter?

By Joona Sep-10/2015 12:25:40

A
Hi Joona, I am sorry that we don't have this product with EU charger to sell because our vendor didn't provide the EU charger version. For your inquiry, we kindly suggest you to use a converter with this item. Please check the converter here: http://www.gearbest.com/usb-gadgets/pp_168132.html
Thank your for your inquiry. Please feel free to ask further pre-sale questions.
Q

Hi, Which power lead is + . Inner or outer? Thank you, Jeff

By Jeffrey T Aug-28/2015 21:19:06

A
Hi Jeffrey, please kindly see the introduction on this post to know further more about this item at this link:
http://forums.mtbr.com/lights-night-riding/nitefighter-bt21-2x-xm-l2-nw-light-965949.html
Thank your for your inquiry. Please feel free to ask if you have further questions. 
Q

Hi, How much time can it hold with 1800lm and 1200lm Dror

By Dror Baron Jul-27/2015 19:38:23

A
Hi,we are sorry for the confusion. Do you mean it can last to how much time from 1800lm to 1200lm?  Or how much time to charge?
It depends on your using time. Sometimes it needs to be charging between 5-6H.
Q

Some questions: 1) Does this come with the charger/cells included or its only the head? 2) Is it in stock?

By Mountainking Jul-12/2015 09:03:37

A
Hi,it is available now and the package includes 1 x Nitefighter BT21 MTB Light, 1 x 7.4V 5.2Ah BAK Battery Pack, 1 x 8.4V 2A Charger, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line, 1 x Storing Box, 1 x English Manual.
Q

Hi, Is it possible to include a EU charger with this item when shipping to EU countries (except UK) ?

By Nuno Fonseca Jun-25/2015 17:33:36

A
Hi,you can use a UK adaptor to charge.
Q

hi, I have several batteries of 8.4v other bike lights I bought the TrustFire is battery and its connection to serve this NITEFIGHTER BT? Thanks Cleber

By Cleber Jun-22/2015 16:31:38

A
Hi,we are sorry toinform that it is not work because this light uses 4x 18650 battery.
Q

Hello, Does this item include a case for the batteries and a cable to connect to the light? Thank you.

By joe_kane Apr-30/2015 22:57:09

A
Hi Joe_kane,
For your inquiry, please kindly refer to the pacakge contents: 1 x Nitefighter BT21 MTB Light, 1 x 7.4V 5.2Ah BAK Battery Pack, 1 x 8.4V 2A Charger, 3 x O-ring, 1 x Headband, 1 x Bandage, 1 x Extending Line, 1 x Storing Box, 1 x English Manual
Batteries is included with the product. Thank your for your inquiry.
Q

You say you have 33 pieces in stock. So if I order now I get one and it will ship in 2-4 days?

By Ken k Dec-02/2015 04:02:58

A
Thank you for your inquiry.
Yes, you are right.
Thanks in advance for your order.
Have a nice day.

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