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Brighten your night without weighing down your noggin.

The Princeton Tec Fuel 3 Headlamp illuminates your world with three bright LEDs and weighs a mere 78 grams (including batteries). Plus, this headlamp's sleek profile eliminates that there's-a-huge-lamp-on-my-forehead feeling. The Fuel 3 Headlamp's bracket makes it easy to direct your light up or down, while a large switch changes the light settings. A wide beam simulates daylight conditions and enhances your peripheral vision, while the multiple-beam settings adjust brightness and/or beam width for greater distance viewing or battery conservation. Princeton Tec gave the Fuel 3 Headlamp an easy-access battery door for quick AAA battery replacements.

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Here's what others have to say...

1 5

absolute junk

I bought 3 on SAC last year. The actual light is great, but not one of them made it through a battery change. The cheap, crappy, plastic housing broke in the same place on each one. A buddy of mine had the same problem. Go spend the $15 bucks on a Black Diamond Gizmo instead.

4 5

Lightweight headlamp

Despite not having a strap that goes over the top of your head, it still sits on your head well without really shaking around. my only problem was that the piece that holds down the lid over the battery area broke, and i have to replace the duct tape holding it down every day. also, its only really bright for the first couple hours you use it, and then it dims down a little.

Responded on

Hey Keene, give us a shout on or 1-800-257-9080 and we can get you a replacement battery door. Using the ladder lock buckle as a lever will make opening the door a lot easier next time.

5 5

Light and BRIGHT.

Better than my last blackdiamond dual bulb light... at least the LEDs are.. These 3 leds are super bright on high! The housing wouldnt be super waterproof if dropped in a pond but for the price this light is hard to beat. If you are looking for a lamp under 30 bucks, this is a must!

Responded on

The packaging actually says made in USA.. Im guessing its 'assembled' here.

5 5


This little unit is great. Weighs very little, is comfortable. I've used it for camping, moving friends after dark, working on the car, BBQing after sun down. The brightness and tilt housing work great for all conditions. Recieved first one as a gift, bought another because it's so awesome.

Did anyone else have a problem getting the...

Posted on

Did anyone else have a problem getting the batteries in, and subsequently taking them out later ? I could not get the lamp working at first, so i decided to take the batteries out. Wow, were the hard to get out, i had to use a knife and other tools to pull them out, the chamber to hold them was super snug. Is there an easier way that I ignorantly didnt try ? On the upside. GREAT lamp !

Best Answer Responded on

The easiest way to get the batteries out is to use the plastic ladder-lock buckle used to adjust the headstrap. You'll notice a round edge which can be used to pry the battery lid open. In fact, this is what it's designed to do. Simply place the thin, round side of the ladder-lock buckle into the space between the main body and battery lid and pry open. Super easy!

Responded on

yes, the strap is convenient for popping the lid open, however, the batteries drop down in the the unit very snugly and are nearly impossible to get out.

Responded on

Yes! The housing is too small for the batteries! They barely got in, and when the did they wouldn't come out. I fixed this through a combination of drilling the housing and using a soldering iron to melt a few high points inside.

Otherwise it puts out a great white light, but because of these problems I won't by a Princeton headlamp again.

5 5


I use this as pretty much my main light. It's easy on battery consumption, very bright and sturdy.

5 5

Great Headlamp

I got this for my father for when he is working on his truck so he would stop borrowing mine. He loves the thing to death. Battery life has been great. This thing can take a beating too and be unscathed. I just got one myself and I am loving this too. Princeton Tec knows how to make a great headlamp.

4 5

Good from SAC

I got this for 50% off on SAC. Ordering and shipping was super easy.For about $18 including shipping this was a steal!This is a very bright lamp with three settings for brightness and one flasher, which was a nice surprise. The button is also smart in the sense that if you click it off it will turn off, and you don't have to cycle through all of the settings. If you want to change the brightness you just click a little faster than you would to turn it on and off. My other light doesn't do this, I have to cycle through all of the settings in order to turn it off, so this is a very convenient feature.Some of the stitching on the headband was a little frayed out of the box, I will see how this holds up after use. I'm not worried though, because there is a five -year manufacturers warranty.I plan to use this for cycling at night as well as camping. It seems very durable, although it did take a small fall and switched off.

Princeton Tec Fuel

Princeton Tec Fuel

Posted on

This pic was actually taken to show off the Gamma SV hood, but you can get a clear view of the Fuel Headlamp strapped to my head as I'm about to head out for a night time snowshoe adventure.

5 5

Great Light

On low you have plenty of light to do what ever you need around camp. I absolutely love this light and for the price it can't be beat.

4 5

Good and inexpensive

I'm new to using headlamps, but I must say that I am impressed. Picked this little guy up cheaply on SAC and have been using it for night time snow shoe adventures in the woods of Wisconsin. It has 3 intensity levels and one signal/flash and is very light weight. Like I said, headlamps are new to me and I nearly forgot it was strapped to my head after a few minutes! It runs on 3 AAAs, the battery compartment is not water proof, but it is designed in such a fashion that it would likely sustain rain with minimal problems (some dielectric grease around the edge of the battery cover would solve this, but I'm unsure how watertight the rest of the housing is. I suppose I will find out this spring!)

5 5

Hands Free and Bright

Fishing at night is a breeze with this headlamp, no more holding a flashlight with my mouth & tying on snapswivels. I can also use it as a primary or backup light for caving.

5 5

Great lamp.

Great headlamp for the price. As usual the review below were accurate and helpful.

5 5

Let there be light

I am quite impressed with this headlamp. It has hi, mid, lo and a blinking mode. And let em tell you that the Hi setting is incredibly bright! I use to Lo when I am working on hand held projects and it works extremely well. I'm thinking about getting another one for the car. Highly recommended.

5 5

Ubber bright.

I was quite suprized when I ficked this lamp on for the first time. I was temporarly blinded for at least a minute from looking strait at it when it came on. Then it proceeded to out shine my more expensive Mammot, Petzl and BD lamps. My only suggestion would be to get the new modle, they added a 4th LED. No weight gain, loses 14 hours burn time (at low) but jumps from 15 Lumens to a listed 43 Lumens, and no price hike. :D

Responded on

Do you always point your lights into your eyes before you turn them on? Lol.

5 5

Plenty good light at a plenty good price.

I use this for all kinds of tasks around the house and outside. It's easy to store and light on the head. Can't beat its versatility at this price point.

5 5

Perfect for most

I got this headlight and a more expensive one for x-mas. This one will be the one I go to more often. It may not be as bright, but it is smaller and a tad lighter.

5 5

Love it

Got this one after i decided i really needed a headlamp for backpacking. Compared it to several other headlamps and found this one is equal in quality to the more expensive lamps. I love the hi/lo/blinking affect, and found it with a very attractive pink headband. Works just as great in the snow as it does in good weather, would definitely recommend it!

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