Klarus RS20 - 1050 lumens - CREE XM-L2 U2 LED & CREE XP-G2 R5 LED - CR123A x2 or 18650 x1

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Tent resting and hiking in one flashlight

Klarus's RS20 is a flashlight with two LEDs, though the second is placed where you wouldn't normally think an LED would go. Opposite the two power buttons. Yes, two. One for the normally placed CREE XM-L2 U2 LED, facing wherever you point the RS20. The XP-G2 R5 LED is positioned so that, when you set it right, the RS20 can light up a room with a good spread of light. If one wanted, you could hang it from a rope or something similar and have a good source of light until you fell asleep, out in the wilderness. Or perhaps as a reading aid, books not being backlit.

The RS20's charging port is magnetic and pulls in the charger, which is USB portable, along with anything else that won't repulse it. The included 2600mAh battery can take up to 7 hours to fully charge. The bezel is crenelated stainless steel, meaning you can pick the RS20 up from almost any fall and be assured it will still work, or keep working if the light(s) was on when you dropped it. Dropping it in water for a short time also won't hurt it, so work and play are well within Klarus's RS20's range of abilities. Click here to read Best Light's review of the RS20.


  • Manufacturer's page: Klarus RS20
  • Utilizes a CREE XM-L2 U2 LED as the primary LED, delivering a maximum output of 1050 ANSI lumens, and uses a CREE XP-G2 R5 for the side LED with 220 ANSI diffused light
  • Designed with two installed LED – one traditional primary LED at front, and one separately controlled side mounted LED
  • Primary LED situated in deep smooth reflector throws beam to a maximum distance of 316 meters
  • Diffused flood side LED, can be used as a lantern/area light
  • Seven total selectable modes, and three flash modes, controlled by two separate switches
  • Specially designed magnetic connection USB charging cable, charging cable can be removed quickly and safely at any time, which makes it an effective flashlight to use in rapid response situations
  • Magnetic connection has built in short circuit protection which makes it safer
  • New ergonomically designed to be easy to operate with one hand. The switches are very easy to locate in the dark
  • Custom KLARUS 2600mAh 3.7V rechargeable Li-ion battery, uses Samsung cell, with unique contact design, without positive and negative poles
  • Uses standard USB port for charging, you can recharge in the home, office, airport, vehicle, etc. Basically, anywhere that has a USB charging port available
  • Crenelated Stainless Steel bezel ring protects the core components from damage
  • User memory function
  • Waterproof to IPX8 Standard (underwater to 2 meters)


  • LED: Primary LED uses CREE XM-L2 U2 1A (6000K); Side LED uses CREE XP-G2 R5 E4 (4500K)
  • Output modes:
    Primary LED:
    High: 1050 lumens/2.5hr
    Medium: 330 lumens/5.1hr
    Low: 10 lumens/154hr
    Moonlight: 1 lumen/1646hr
    Side-mounted LED:
    High: 220 lumens/2.9hr
    Medium: 80 lumens/7.8hr
    Low: 10 lumens/75hr
  • Working Voltage: 3.0V - 8.4V
  • Compatibility Battery: 2x CR123A/1x 18650 (any 18650 battery with PCB protection), and supplied custom 18650
    *Warning: Please ONLY use KLARUS custom 18650 battery for recharging, any 18650 battery with PCB protection or CR123A battery may be used in emergency, but cannot be recharged, you must take out the non-approved rechargeable battery to recharge it. (And do not use 16340 battery!)
  • Charging: Input: 5V; Output: 4.2V/500 mA Max
    Charging time: up to 7 hours
  • Body color: Military grey
  • Reflector: Smooth reflector for primary LED
  • Lens: Toughened ultra-clear glass
  • Dimensions: 176mm (Length) x 25.4mm (Body) x 45.3mm (Head)
  • Weight: 190g (Excluding battery)

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