Your cart is empty.
Your cart is empty.From the manufacturer
About us
Proudly made in the USA since 1975
Light makes anything possible. It’s a symbol of hope and innovation. It’s also a daily necessity for everyone from backpackers to fire fighters. For over 45 years, Princeton Tec has pushed the limits of possibility with reliable, durable lights that shine bright in every situation.
We started at the bottom of the ocean
Our story begins 40 years ago in Princeton, New Jersey. Bill Stephens was running the dive shop he founded with several friends and punching the clock at his day job.
When Bill’s engineering firm tried to relocate the Stephens family to land-locked Indianapolis, far from the Atlantic Ocean where he loved to dive, Bill quit and focused on creating the industry’s first automatic dive timer, called the Bottom Timer. Princeton Tec was born.
Coming up for air
As the market was increasingly flooded with cheap imports, we doubled down on the in-house product line. We began offering the Bottom Light in a rainbow of colors. It was the ‘80s, after all, so divers were excited to match their flashlight to their wetsuit. We added a wrist cord, revamped the packaging to include batteries, and started selling our flashlight to law enforcement and firefighters.
keith e eads
Reviewed in the United States on February 17, 2025
Nice light
Lucy
Reviewed in the United States on September 2, 2024
I am a kayaker and also a hiker. This beacon light is a great safety item and I have added it to the 10-Essentials for both my dry bag and my backpack.
BRW
Reviewed in the United States on September 16, 2024
Great market light for other divers have visibility of you. I've placed mine on my back at the top of the BCD and it works great.
Anderson Matos Teixeira
Reviewed in Brazil on July 25, 2024
Ideal para quem faz atividades de aventura e resgate. Bom brilho e duração. Poderia durar mais, mas aguenta 12h e pouco.
CC from MD
Reviewed in the United States on May 7, 2024
I bought this as a replacement for an old strobe with a cracked housing. The unit I received from amazon did not work, even with a fresh battery and after some fiddling with its innards. I took advance of Princeton Tec's warranty, and invested an addition $5 in sending it back for "repair". They sent me a new one that didn't work, either. It flashed once - briefly - the first time I twisted the housing down, but that seems to have been its swan song. You might get lucky and get a random one that works, or you might not. I'm zero for two.
somebody i used to know
Reviewed in the United States on August 26, 2023
I bought this light to find my entrance for scuba diving. Plenty bright. I am sure would also work as an emergency beacon for water sports.
Dennis McCullough
Reviewed in Canada on July 1, 2023
In conditions of poor to non-existent visibility this strobe does an excellent job of enabling divers to maintain buddy contact and of providing a beacon to bring divers back to the starting point. Durable, lightweight and unobtrusive it is should be part of every diver's kit on night dives or dives in poor visibility.
Vlad Adamenko
Reviewed in Canada on April 29, 2023
Item looked normal on arrival. But when I tried to use it in water, strobe didn't start working after tightening of the cap as it should.Since that happen during pre-dive sequence, spare strobe was deployed and this item was stored away.After two consecutive dives with maximum depth 23m this strobe returned back home, where I realized I cannot unscrew the cap any more. Even using vice-grip.For some reason, I cannot return item or ask for refund. Not happy.
A Practical Yankee Engineer
Reviewed in the United States on February 16, 2022
For night diving, we let it (tied to an extra lead weight) 'float' at a certain depth, say 30 feet. Upon return, this makes us comfortable we'll be able to find our way back. It blinks at a comfortable rate...about once a second and is visible a long way off. No way I'd want this attached to my BCD>..too distracting. THe twist on/twist off I don't like but I keep the orings well lubed, and check it once I'm out of the water. A single battery lasts for a weeks worth of night diving which is nice. I'd buy it again in a minute and a bunch of my friends have asked me where I got it.
David Mason
Reviewed in the United Kingdom on June 20, 2021
Product didn’t work and had to be returned
JCrain
Reviewed in the United States on June 12, 2021
Single triple A battery lasts pretty good, still bright after :80 minutes, using it as my anchor strobe, lashed a stainless chain loop to it for weight, i wish the cone was more reflective to the sides like a traditional strobe, but still served its purpose well
L. Howard
Reviewed in Canada on February 20, 2020
Bought this to replace my previous Princeton Tec Aqua Strobe. It had stopped working. It was a Xenon bulb style. The only issue with the new LED style, is the fact that the LED wafer is sitting flat and reduces the amount of light seen when the light is floating vertically from the back of your scuba tank. I painted the outer half of the lens (inside) with some white acrylic craft paint. This increased the visibility to other divers greatly. Great product.
Michael M.
Reviewed in the United States on February 27, 2019
I don't intend to use this as a personal dive beacon. I think it would be far too bright/distracting to have it attached to me while swimming at night with a group. But that said, it IS very bright, and it should work perfectly for nighttime shore diving (in reasonably clear water) to mark the dive entry/exit point. (At the time of writing this review, I have not yet used it "in situ" but will add an edit later if there is further useful info to share.)It is positively buoyant, so it should work perfectly for adding a thin cord with a weight to anchor it on the seafloor and keep it suspended mid-water. A minor design flaw is that the LED is directional, and the cone is not frosted enough to catch much of the light, so the strobe is much less bright when viewed from the side. A simple fix for this was to push a white piece of foam into the cone (a cotton ball will also work). This gives the bright light something to "bounce" off of and makes it much more visible from any direction.This light was pretty much a perfect fit for my application. (Seems like it could have been priced closer to $20, however.)
Recommended Products