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JETBeam KO-03 USB-C Rechargeable LED Flashlight - 2400 Lumens - Luminus SST70 - Includes 1 x 21700, Accepts 1 x 20700, 1 x 18650, 2 x CR123A

jetbeam ko-03 angled down facing the left
jetbeam ko-03 angled facing away and to the left
jetbeam ko-03 held in gloved hand
jetbeam ko-03 close up of usb-c charging port
jetbeam ko-03 manufacturer slide about key features and selling points
jetbeam ko-03 manufacturer slide about upgraded LED
jetbeam ko-03 manufacturer slide about portable power bank functionality
jetbeam ko-03 manufacturer slide about usb type c charging
jetbeam ko-03 manufacturer slide about single body switch
jetbeam ko-03 manufacturer slide about double tap to instant access to strobe
jetbeam ko-03 manufacturer slide about integrated switch and power indicator
JETBeam KO-03 Flashlight alternate view 10
JETBeam KO-03 Flashlight alternate view 11
JETBeam KO-03 Flashlight alternate view 12
JETBeam KO-03 Flashlight alternate view 13
JETBeam KO-03 Flashlight alternate view 14
JETBeam KO-03 Flashlight alternate view 15
JETBeam KO-03 Flashlight alternate view 16
JETBeam KO-03 Flashlight alternate view 17
JETBeam KO-03 Flashlight alternate view 18
JETBeam KO-03 Flashlight alternate view 19
JETBeam KO-03 Flashlight alternate view 20
jetbeam ko-03 angled down facing the left
jetbeam ko-03 angled facing away and to the left
jetbeam ko-03 held in gloved hand
jetbeam ko-03 close up of usb-c charging port
jetbeam ko-03 manufacturer slide about key features and selling points
jetbeam ko-03 manufacturer slide about upgraded LED
jetbeam ko-03 manufacturer slide about portable power bank functionality
jetbeam ko-03 manufacturer slide about usb type c charging
jetbeam ko-03 manufacturer slide about single body switch
jetbeam ko-03 manufacturer slide about double tap to instant access to strobe
jetbeam ko-03 manufacturer slide about integrated switch and power indicator
Click to Enlarge Image
  • Magnetic, flat tailcap - hands-free and tail stand capable.
  • Fuel options - includes 21700, also accepts 20700, 18650 and CR123A batteries.
  • Five brightness settings plus instant access to strobe mode.
  • USB-C rechargeable and power bank functionality in a pinch.

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Description

JETBeam KO-03

Next Generation Lighting

The JETBeam KO-03 is the next generation in the KO series of flashlights. The KO-03 is an upgrade from the very popular JETBeam KO-02, now with a Luminus SST-70 LED, longer run times and more functionality. With almost the exact same body design, this light puts out 400 more lumens and lasts over 200 hours longer than its predecessor.

Fuel Options

The KO-03 is gives users multiple fuel options for their convenience. The package includes a JETBeam 21700 li-ion battery, but can also be powered by 1 x 20700, 1 x 18650, or 2 x CR123A batteries. When using li-ion batteries, the KO-03 has the unique feature of providing a power bank function with the discharge of the battery. Charge up essential electronics in a pinch with the flashlight already in use.

Flat, Magnetic Tailcap

To ensure ultimate efficiency in different environments and work places, the KO-03 has a flat, magnetic tailcap. Use this light on flat floors or surfaces for tail stand lighting when broader lighting is needed. Attach the KO-03 to metal surfaces with its powerful magnetic tail for a hands-free lighting device - often needed in power outages, auto emergencies and utility work.

Turbo High Med Low Eco Strobe
Brightness 2,400lumens 1,100lumens 300lumens 65lumens 6lumens 1,200lumens
Runtime 3.5hours 4.5hours 8.8hours 37hours 350hours 5.2hours
  • Notable Features
  • » High powered EDC designed for outdoor and everyday needs
  • » Powered by one 21700 li-ion battery for extended run times
  • » Multiple fuel options - also accepts 1 x 18650 or 1 x 20700 li-ion battery
  • » Lightning fast charging with the built-in USB-C charge port
  • » Strong magnet in flat tailcap - hands-free use, tail stand capable
  • » Five brightness settings plus instant access to strobe with a double press
  • » Max output of 2,400 lumens reaching 326 meters away
  • » Power bank functionality for charging electronics in emergencies
  • » Equipped with one Luminus SST-70 LED with a lifespan of 50,000 hours
  • » Intelligent temperature control system for added safety
  • » Constructed from aero grade aluminum alloy for ultimate durability
  • » Military grade hard-anodized to stand up to outdoor use
Specifications
TurboHighMediumLowMoonlight
Lumens:24001100300656
Runtime (Hours):3.54.58.837350
Output Modes:3+ Brightness Levels, Strobe
Compatible Batteries:1 x 18650, 1 x 20700, 1 x 21700, 2 x CR123A
Batteries Included:Yes
Included Accessories:Batteries, Lanyard, Spare O-ring(s), USB Cable, User Manual
Flashlight Usage:Every Day Carry, Magnetic Base
Throw Distance (Max):326m
Switch Location:Body
Product Certifications:ANSI, IPX-8
Brand:JETBeam
Warranty:Battery Junction 30-Day Warranty, JETBeam 2 Year Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Anodized Aluminum
Product Weight:4.33oz
Product Dimensions:5.3" (L) x 1.35" (Head Diameter)1.01" (Body Diameter)
UPC:6957883865551
MPN:KO-03
Country of Origin:China
Downloads
Reviews
By David P.
Granite Bay, CA
This is the one I carry all the time.
August 31, 2021
Love the look, feel, and performance of this quality flashlight.
By Robert S.
Oregon
One of the best
August 27, 2021
This JETBeam KO-03 is one of the best flashlights I've ever owned. It is rated at 2400 lumens but outshines other supposed higher lumen lights I have. The reason is that it remains at that output level for a far longer number of minutes. Even at the next lower output level the KO-03 remains brighter for longer than my other lights. The only reason I give it four stars instead of five is the absence of a tail switch. That being said the design of this flashlight is more compact and streamlined. Yes, batteries for the better performance cost more than twice as much but the performance levels make it worth the extra $$$.
By Steve
Montvale, VA
Nice Light, but I think priced too high for what you get, Powe Bank Function Low Amps
August 14, 2021
Nice, Bright Light, Power Bank Function only 0.5 amps. It will do in a Pinch, but Not FAST like JETBeam says! Overall I like the light. I just think it's Overpriced for what you get. I have bought Way Better Quality Nitecore light for the same price.I would send it back but I'll have to pay return shipping and a 15% Restocking fee. Might as well keep it. Live and learn I guess!
None of this is Battery Junction's Fault. JETBeam should Up The Amps on the Power Bank Function to at least 1 Amp! And Lower the Price.
Q&A
1 Question & 1 Answer
Johnny
from So. Cal. asked:
August 8, 2021
What are the run times for the top three light levels  when  the protection curcuit lowers it? Also, the light outputs and the run times after the light lowers its output.
1 Answer
Thank you for contacting us.  Per JetBeam -  Onthe turbo mode, the KO-03 keeps at 2400 lumens for 1 minute, then drops to 1200lumens for 6 minutes, and then drops to 750 lumens.
Submitted by: Martha Bannister on August 10, 2021

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JETBeam KO-03 USB-C Rechargeable LED Flashlight - 2400 Lumens - Luminus SST70 - Includes 1 x 21700, Accepts 1 x 20700, 1 x 18650, 2 x CR123A

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