Jet-I Pro I.B.S. Flashlight

Jet-I Pro I.B.S.My latest flashlight is the JETBeam Jet-I Pro I.B.S. V1. It uses a single AA size battery to power a Cree XR-E 7090 LED (Q5 bin). The JETBeam Jet-I Pro I.B.S. came with a lanyard, removable clip, spare tail cap, two spare o-rings and a warranty card.

BugOutGearUSA.com, where I purchased my Jet-I Pro I.B.S. for $64.95 USD, now lists a Jet-I Pro I.B.S. 2.0. From what I’ve read, the 2.0 is only cosmetically different.

According to JETBeam specs, the lens is sapphire crystal and the body is T6061 T6 aluminum with a type III hard anodized finish. The dimensions: Bezel diameter – 25mm, Tail diameter – 19mm, Overall length – 100mm, while the weight is 50g.

The push button tail cap switch is a “reverse” click type, i.e., the switch will make or break contact after it clicks. I prefer the “tactical” or forward click switch – a forward click switch will allow a half press of the switch to turn on a flashlight.

I tried fitting two forward click switches – one that I removed from my LumaPower D-Mini Digital and a McClicky switch. Neither fit. Unable to find a forward click switch, I settled for replacing the black tail cap with a glow-in-the-dark silicone tail cap.

Jet-I Pro I.B.S.

Because the Jet-I Pro flashlight will accept an input voltage of up to 4.2V, it can use a rechargeable 3.7V 14500 Lithium battery. The Lithium battery gives a not insignificant 100 more lumens when compared to a 1.5V Alkaline AA battery or a 1.2V rechargeable NiMH.

The main attraction of the Jet-I Pro is the I.B.S. (Infinite Brightness Setting) technology. The I.B.S. circuit allows for three operating modes, A, B and C, each of which can be set at any output of ~2 to 225 lumens. Any mode can also be set to one of five strobe modes including 1Hz to 15Hz, warning signal, standby (flash once every 8 seconds), 100% SOS and 5% SOS.

When reading about programming the flashlight, it seems complicated. In practice, it’s relatively simple. BugOutGearUSA.com has a page with the Jetbeam I.B.S. User Interface Instructions.

JET-I PRO I.B.S.

Output & Runtime (from JETBeam):

AA Battery
Max Output: 130 Lumens, lasting for one hour;
High Output (Default Mode A): 110 Lumens, lasting for 75 min;
Low Output (Default Mode B): 20 Lumens, lasting for 3.5 hours;
Minimum Output: 2 Lumens, lasting for 45 hours;

Cree XLamp® XR-E LED (Q5 bin)Rechargeable lithium Battery
Max output: 225 lumens, lasting for half an hour;
High output (Default Mode A) 180 lumens, lasting for 45 min;
Low output (Default Mode B) 20 lumens, lasting for 8 hours;
Minimum Output: 2 lumens, lasting for 50 hours;

Compared to my modded LumaPower D-Mini Digital (Cree Q5, DX 7612, single RCR123 and McClicky) the Jet-I Pro wasn’t as bright. But the D-Mini’s reflector is smooth, is deeper and 50% larger in diameter. The JETBeam Jet-I Pro I.B.S. is a great flashlight for its size and versatility.

Cree XLamp XR-E R2 Bin

Solarforce Cree R2 (5 mode) drop-inNow that I’m a flashaholic, I’m always looking for brighter LEDs. A recent eBay search for the latest Cree XR-E 7090 white LED R2 bin, I found this Solarforce Cree R2 (5 mode) drop-in.

It’s called a P60 sized drop-in, because that is a Surefire size designation for a reflector-LED-regulator assembly that also fits many different other manufacturers flashlights. The Solarforce drop-in is advertised as 290 lumens (seems unlikely), maximum. The five modes are: strobe, 3 levels of brightness and S.O.S. It was $27.99 USD plus $3.00 shipping. It showed up today in the mail and I was shocked, because delivery from China, where the vendor is located, took only 10 days.

Ultrafire 502B Flashlight

For a comparison test, I used fully charged Ultrafire RCR123 batteries and Ultrafire 502B flashlights with switches replaced with Judco SPST 519PB-ND I bought from Digi-Key. The other P60 size drop-in was a generic Cree P4 module. In the first beamshot, the difference is brightness is minor. I tried another Cree P4 and it put out much less light compared to the Solarforce R2 drop-in. The third beam shot uses the first two modules, but is underexposed 1.5 stops to maximize the visual difference in the two beams.

So did I find a brighter light? I have the feeling I did. I’ll have to check it with my light meter and compare the EVs.

My beamshots were done with a Nikon D70, Nikon 50mm f1.4 lens. Exposure information: ISO 400, 1/30 sec, f2.0.