JETBeam RRT-0 and with SF123A battery and AA battery

I got a nice Black Friday deal on a JETBeam RRT-0 flashlight from the people at I read bondr006’s great review on Candlepowerforums and it looked like a really nice little light. The main feature of the JETBeam RRT series is the ability to adjust the brightness to different levels by turning the Rapid Response Control Ring at the base of the head.

The RRT-0 is also versatile because it can use 3.0V CR123 primary batteries, 16340 3.7V rechargeable Lithium batteries, 1.5V AA primary batteries, 1.2V AA rechargeable batteries and 14500 rechargeable Lithium batteries. The latter three require the AA extender, which adds a little more than a .6 inch (16 mm) to the 3.8 inches (97 mm) length.

I have a JETBeam Jet-I Pro I.B.S. flashlight, which is slightly smaller in size. The RRT-0 is a little larger in diameter because it can take CR123 batteries and a little longer, because of the rotary switch built into the body. I can also set a “lower” low level output on my Jet-I Pro. The RRT-0 also lacks a strobe mode – which I would probably only use if I was lost in the mountains at night needing air rescue. But I could always use the forward clicky switch for signaling.

JETBeam claims an output of 240 lumens. I have not seen independent confirmation of these numbers, but my RRT-0 (with the SMO reflector) certainly looks close to my Malkoff M60 drop-in. In laymen terms, Surefire describes 200 lumens as ten times the light of a big two-D-cell flashlight. For a flashlight this size, the JETBeam RRT-0 puts out a lot of light.

From JETBeam:

Model: RRT-0
Specially designed for Military, Law Enforcement, Self-defense, Hunting, Search & Rescue and Outdoorsman
The Rapid Response Control Ring allows the user to easily select different brightness level
Five levels of brightness to choose
Optional low / lower low mode
Stainless steel rapid response control ring, very reliable and durable
Stainless steel bezels protect the head and tail cap from drops and impacts
Stainless steel crenulated bezel can be used as a glass breaker or defensive tool
Max output reaches 240 lumens with an effective range of 200 meters
New dual curve reflector specially designed for CREE LED, which allows for better beam quality, efficiency and throw capability
Newly designed high efficiency broad voltage drive circuit
Compatible with both CR123 and RCR123 rechargeable Li-ion batteries
Floating positive end, designed for better contact
Built-in intelligent Li-ion rechargeable batteries protection circuit
Impact-resistant accords with US MIL-STD-810F
IPX 8 standard waterproof

Dimension: Head/Tail diameter 25.4mm; Body diameter 20.5mm; Length 97mm.
Weight: 86g

Output & Runtime:
Using CR123 Battery
High Mode 240 Lumens, 45 min
Daily Mode 50 Lumens, 7.5 hours
Mid Mode 25 Lumens, 12 hours
Low Mode 10 Lumens, 20 hours
Lower Low Mode 1 Lumen, 100 hours

Using AA Battery
High Mode 180 Lumens, 45 min
Daily Mode 50 Lumens, 5 hours
Mid Mode 25 Lumens, 10 hours
Low Mode 10 Lumens, 15 hours
Lower Low Mode 1 Lumen, 80 hours

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