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  • Princeton Tec - Amp 3.5 Flashlight -

Princeton Tec Amp 3.5 Flashlight

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13 Reviews


Amp up your camp lighting.

When darkness falls, the Princeton Tec’s 90 hours of burn time will get you through weeks worth of late-night calls of nature, gear sorting sessions, and overextended dayhikes. The rugged, water-resistant casing holds up to stormy trail conditions, while super-bright LED bulbs illuminate any outdoor situation. An end lanyard loop lets you clip it inside your tent or hang it from your pack.
  • The Amp 5.0 features a clip attachment and a cycle button to switch between LED’s
  • Item #PRT0032

Tech Specs

Bulb Type
Power Source
4 AA
Burn Time
[3.0] 90 hours, [4.0] 160 hours, [5.0] 160 hours
[3.0] 3 Ultrabright LED;[4.0] 1 Maxbright LED;[5.0] 3 Ultrabright LED, 1 Maxbright LED
[3.0] 40, [4.0] 50, [5.0] 65
Claimed Weight
[3.0] 122 g, [4.0] 206 g, [5.0] 212 g
Recommended Use
camping, backpacking, paddling
Manufacturer Warranty

Tech Specs

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would not recommend

    A really bad design. And it didn't work. The batteries that came with it were dead( ofcourse we had to find that out to see how that it would turn on but not off.) The installation of the batteries is extremely frustrating as well.

    Designer should be shot

      Great light.

      Horrible design for battery replacement.
      And worse than horrible instructions.

      There is no excuse for such a user unfriendly product.

      eh, so so.

        Bought the Princeton Tec Amp 3.0 on SAC for $7.49, for that price, it is a fair light. Had I paid anything close to retail on this it wouldn't have gotten the liberal 3 star rating it is getting.

        SAC displayed an image for the Amp 5.0 which comes with a clip... in hind site, I prefer it without, but I could see this being a gripe for some folks.

        I ordered two, as backup for the glove box and night time dog walks when I don't feel like slipping a headlamp on. Also thought it would be a decent backpacking backup but I don't trust it for that. Battery installation is a pain, and I wouldn't want to try it with gloves or in an emergency situation.

        If you find this on deal, and need something weather resistant for dog duty get it. If you want a dependable flashlight for emergency situations then look elsewhere.

        Good not great.

          I bought the Princeton Tec Amp Series Flashlight 5.0.
          It is a pretty good flashlight at the sale price, but I don't think it is worth $45.

          It works well and I suspect the battery life will be very long. There is an annoying delay when you press the button before the unit shuts off. I think this is because it is a dual function button. You press it once to switch modes and hold to turn it off. I have accidentally turned it on when in my pocket. I'd rather turn off a light instantly than have to hold the button for 2 seconds.

          Like many LED lights, while bright, it doesn't project a spot far if you want to identify something at a distance. It will shine light a good way but it is kind of diffused by then.

          It is actually too bright to shine towards people as it is kind of a blinding glare. So, it'd be nicer if it had a dim mode you can use when you're just walking the dog or want to light up the general area around you.

          In SUMMARY- very bright, good battery life. Would be nice if it had a dim function, instant turn off, and more focused spot beam.


            I use this as a backup to my head lamp on long distance night training run. It throws a good amount of light and the battery is fairly long lasting. I've dropped it a few times on the trail but it's still working. It's short, not too heavy and easy to carry.

            buy somthing else

              so i open up the package put in the batteries and turn it on. it seems to work fine... and then all of sudden it just wont turn back on.. this piece of crap broke within 5 minutes. im getting a refund and buying a flashlight that works!

              Very nice flashlight

                This is a good, all-purpose flashlight (I have the 5.0). The two settings can be helpful (one bright LED for distance or full lighting; 3 dimmer LED's for closer/less bright lighting). While it's fairly lightweight, it's still a little heavy for backpacking (that's what my headlamps are for) but it is good around the house or for car camping. It says that it is water resistant to 1m, and has a comfortable feel in my hand. The lanyard and belt clip can be useful.

                REALLY BRIGHT

                  I got the 5.0 of off SAC and it works great. It is a little bulky and heavy for backpacking, which is what I planned on using it for. I know it what drain the battery rather quickly but I wish there was a way to have the max bright led and the 3 ultrabright leds on at the same time. It would just be cool.


                    Does exactly what it's supposed to do. The maxbright is extremely bright and lights up the whole trail. I like that you can switch light modes without turning it off- wish my headlamp had that function. Also nice that it comes with a lanyard AND a clip for your belt. Feels very solid but very light.

                    Great Flashlight

                      I have had one of the amp 5.0 and it has been great so far. The single maxbright is great for distance and the three ultrabright do really well for a short range dispersed light mode. The battery life seems to be pretty good. It also seems to be pretty rugged and it is water and dust resistant, so I have no complaints.

                      Please someone tell me how do I put the...

                      Please someone tell me how do I put the batteries in the PRINCETON TEC Amp 3.0 LED Flashlight - I cant find the instructions!

                      Hey Nozza:

                      First, unscrew the light bezel. Then, pull out the actual light unit. On the inside of the main tube handle (towards he top) you'll see a + and - signs for the batteries. Put the batteries in according with each sign, 2 - and 2 +. Put the light unit back it and screw the bezel back on. Hit the on/off button. Now, you have light. Hope this helps.