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Princeton Tec Byte Headlamp

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  • Single Maxbright LED outputs 50 lumens to light up your nighttime activities; Maxbright LED throws light up to 30m on high and 18m on low
  • Use the single standard red LED to preserve your night vision while on the trail or hanging around camp; red LED throws light up to 7m
  • Single-arm ratcheting head pivots up and down, providing a wide range of motion so you can aim the beam wherever you need it
  • Princeton Tec Byte headlamp features a large push-button switch that is easy to operate
  • Operates on 2 AAA batteries (included), which provide up to 2 hrs. of burn time on high, 96 hrs. on low; using the red LED, the batteries provide up to 146 hrs. of operation
  • IPX4 water resistance protects against splashing water


Item 847236

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Princeton Tec Byte Headlamp Specs
Best use
High-output LED/red LED
Spot, Flood
50 lumens
High: 50 / low: unavailable lumens
30 meters
High: 30 / low 18 meters
High: 2 / low: 96 hours
2.3 x 1.25 x 1.5 inches
2.25 ounces
Bulb type
Bulb detail
Red light mode
Beam type
Max light output (lumens)
Light output
Max beam distance (m)
Beam distance
Brightness levels
Average run time
Regulated output
Weight with batteries

Princeton Tec Byte Headlamp

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Rated 2.5556/5 based on 9 reviews
Rated 5out of5
by fromGreat little light I liked these so much I got a second one as a spare. It's lightweight, inexpensive, only takes 2 AAA batteries and best of all also has a red mode. I actually see better at night walking around with the single red LED than I do with brighter white lights because it doesn't mess up my night vision.
Date published: 2013-10-29
Rated 1out of5
by fromS/C Just bought it to replace my last headlamp that lasted me for 8 years. Took it home and found that it has a short circuit. I need a trust worthy light source for it will be the only one around, and this product/company I can not trust.
Date published: 2012-10-18
Rated 1out of5
by fromBurns batteries even when light is off. Everytime I picked this light up to use the batteries would be dead. I found brand new batteries dead after about a month in the light without the light being used. I replaced batteries and checked current flow with light is off. I found that the light was pulling 0.5mA of current with the switch off. This is unexceptable and I can't believe any company would knowingly put this kind of junk on the market. I will never buy another Princeton Tech product again.
Date published: 2013-02-18
Rated 2out of5
by fromBad Battery Idea If you put a battery in this headlamp in dim light you will see the bulb flash momentarily, this is almost certainly a constant draw on the battery. I tried to turn this headlamp on after not using it for two weeks and the battery was dead. This was 2 weeks after I bought the headlamp fyi. I have a different princeton tec that works great. Just dont buy this one.
Date published: 2012-10-19
Rated 2out of5
by fromMeh This head lamp worked great for the first few months. Then it started running out of battery after an hour or two, even if the light wasn't on. It became totally useless and I had to return it.
Date published: 2012-11-28
Rated 2out of5
by fromSemi-disposable I use it at work, so while it IS a battery hog I'm not paying for the batteries. The bigger problem for me is it's nearly impossible to adjust the angle with one hand. No good when you have a screwdriver in the other one. But it's cheap, which is not what I'm about. If you need a spare headlamp to rattle around in the bottom of your pack/truck/etc this is fine, just tape the batteries to the outside.
Date published: 2013-01-04
Rated 2out of5
by fromNice fit, but harsh on batteries My old headlamp needed to be replaced (bulky, heavy), so I set out looking for a small, lightweight replacement. I like the size and weight of this headlamp. It is easy to adjust to fit my head and I didn't feel like it was going to fall off or crush my skull like my old one. The red led mode worked well for those late night restroom excursions. I used it for a solid week at Boy Scout summer camp (Raven Knob) last year and really didn't have a problem. A few months later, I took it on a zip lining trip and the batteries were dead. Now I'm reasonably sure that I didn't leave it on when I packed it away after summer camp, but figured maybe I used it more than I remembered and put my spare set of batteries in without much further thought. I made especially sure to note that it was turned off when I got back and put it away until the next trip. The following month while going on another camping trip, I turned the headlamp on and...nothing. Batteries are dead again. Fortunately, I had another spare set, but this pretty much convinced me that the battery life in this model isn't very good. I'll likely be doing some further research and looking for a small, lightweight replacement with better battery life.
Date published: 2013-02-05
Rated 4out of5
by fromReally bright... for a while... This is a great little light, that is great for taking care of business around camp. Its also fairly light weight, and compact. Beware that the bright setting, which is plenty bright enough to do anything doesn't last very long, maybe an hour or two before it starts to go dim. The light does run a really long time on low which is enough to see what your stepping on, but I found it to be really insufficient if you're trying to use it to navigate the woods at night. The swiveling beam and the red LED on the front have been really handy features.
Date published: 2012-09-04

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