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Nitecore Tube RL (Red Light) USB Rechargeable Keylight - Red LED - 13 Lumens - Built-in Battery Pack - Black

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Unlock the Full Potential of Your Night Vision

There's no better light than red light for night vision. It's a secret that astronomers, hunters, photographers in darkrooms, and military night ops have known for years. Unlike blinding white LEDs, red light allows your pupils to stay wide open, providing you with clear and painless details in the dark. Nitecore harnesses the power of red light in this addition to their Tube series, creating a powerful and compact keylight. Use the Tube RL to illuminate your path, adjust your telescope, track your game, or line up the perfect night photo. You'll love the long battery life, since red LEDs are more energy-efficient than white ones. Always thought you had bad night vision? The Tube RL will make you think again.

Experience the Power

Nitecore's Tube series is a wild success because they're just so damn handy. It's not like you have to make any changes to your routine to start using it. It can recharge using the same cable you already use for your smartphone. You can attach it to your keychain without adding substantial weight or bulk. A lockout feature prevents it from accidentally activating. We constantly hear reviews from users saying they never thought they would use their Tube as much as they do. No wonder it's one of our top sellers!

Tiny Body, Tough Materials

Nitecore understands that keys don't get treated very gently. That's why they construct the Tube RL from polycarbonate, the same material used to make SWAT team riot shields. Drops, scrapes, and dirt don't break your keys, and they won't stop the Tube either. The keyring on the back of the housing can sustain an absurd 77 pounds of weight. Like the Spock to your Kirk, the Donkey to your Shrek, the Pippin to your Jordan, the Tube is about to become your reliable sidekick.


  • Red light is easier for human eyes to perceive, allowing your pupils to remain dilated and your night vision to stay maximized
  • More energy efficient than white LEDs
  • Made from polycarbonate, the same material used in motorcycle helmets and riot shields
  • 100° wide angle illumination
  • Perfect for night photography, wildlife observation, telescope and astronomy usage, night hiking, and darkroom work
  • Recharge with any micro USB cord
  • Battery indicator glows blue when battery is charging, and shuts off when fully charged
  • Intelligent Charge circuits protect the battery from overcharge and over-discharge, as well as preventing short circuits
  • Rear suspension ring can bear a load up to 35 kg/77 lbs., in case you have really, really heavy keys
  • Lock-out function prevents accidental activation
  • Smaller than your finger, easy to hold


  • Output / Runtime: 1 hour / 13 lumens
  • Rechargeable Li-ion Battery
  • Length: 56.5 mm / 2.22 in
  • Head Size: 21 mm / 0.83 in
  • Weight : 9 g / 0.32 oz
  • Spill: 100°
  • UPC: 6952506402380

NOTE: Micro-USB charging cable not included

Runtime (Hours):-1---
Output Modes:Single Brightness Level, Red
Compatible Batteries:Battery Pack
Batteries Included:Yes
Included Accessories:Batteries, Key Ring
Flashlight Usage:Every Day Carry, Keychain
Switch Location:Body
Product Certifications:CE, RoHS
Warranty:Battery Junction 30-Day Warranty, Nitecore 1 Year Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Plastic
Product Weight:0.32oz
Product Dimensions:2.22" (L) x 0.83" (W) x
Country of Origin:CN
5 Reviews
60% (3)
20% (1)
0% (0)
20% (1)
0% (0)
By Josh
Super compact and rechargeable
December 22, 2016
Nitecore's Tube form factor might be the best for an every day pocketable flashlight. I often have one clipped inside my pocket, its flat design makes it feel like it's not there. The tube series is much brighter than most other flashlights of this size, and USB rechargeable as well.
After buying a white Tube, I later purchased the red RL to throw in my camera bag, so I could see my way around the camera when shooting at night. Again thanks to its size it takes up virtually no space in my camera bag, and I can recharge it at any time via USB. USB charging is a requirement for all flashlights and gear I travel with.
The only disappointment is the Tube RL has no modes at all, simply on and off. The white tube has variable brightness an useful features that were removed for some reason from the RL. Click on, click off. Hold to lock out, which strangely reduces battery life. I wish it at least has one lower brightness. Not a huge problem because a red light is of limited use anyway, but why remove features?
I should also mention that this casts a nice wide beam as well, compared to my Inova red, the Tube is much wider, though just as bright in the center.
Proscompact, pocketable, USB rechargeable, bright
ConsLack of modes
McDonald Observatory
Well, it is red, at least
May 21, 2019
Disappointed with this purchase. I'm giving it two stars because it is, at least, a red LED light. That's about as much positive as I can say for it. Other than that, it leaves much to be desired. It's WAY too bright to use at a telescope when trying to keep dark-adaptation. Unlike the Nitecore Tube white-light version which is dimmable, this red one is just on or off. They obviously have circuitry to make a one-button dimmable light ... why not install that on this light? Also, the light turns itself off after being on for a little while. I'm not sure how long it takes to turn itself off but I have noticed that, as the night progresses, it seems to turn itself off at shorter and shorter intervals. Definitely don't understand that but it's quite annoying.
By StarLightStarBright
In the deep, dark woods
Excellent light, a bit bright for really low-light usecases
October 10, 2018
This is an excellent, very compact light. It recharges easily & quickly. The output is a very good tone of red.

My only possible beef is that it's a bit bright for my usecases (very low-light situations), so I would have preferred more like 5 lumens, rather than the 13 it produces, since it's a bit too bright for a dark room or dark-night astronomy.

However, as a general purpose red-only light that's dead-simple to use, it's just about ideal. It's great for searching for stuff you've lost in the dark or poking around under the hood, so I now keep mine in the car.

By Casey
Sandwich, MA
Great fishing light
September 24, 2017
I attached this light to the strap of my headlamp with some velcro, mainly fishing at night I like using the red light so my eyes are still adjusted to the darkness when i turn it off. Awesome addition to any headlamp for any hunter/fisherman.
ProsBattery life is good Easy operation Perfect brightness
ConsAn IPX8 rated model of this light would be a homerun in my case.
By JohnDavid
North Carolina
Great little EDC light especially during the evening when you want to be less visible entering your home or vehicle.
December 24, 2016
I will use this when I don't want a lot of light or attention.
ProsSmall size and rechargeable.
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