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Princeton Tec , Eco Flare

50 reviews
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About Princeton Tec, Eco Flare

Featured Reviews

See all 50 reviews

Cute Light, Small Package


Light comes with "constant on" LED (White) -AND- "flashing" LED (Red). I chose this only as a tank marker light, as it really doesn't have a "beam" like a dive light. Bought two - one for my wife and one for me. Product is compact and lightweight, which is perfect for combatting the ever decreasing weight restrictions on airlines.


Best flashing marker light I've tried!

By nwscubamom

I love this light! It's small, attaches easily to your cylinder using the toggle and lanyard. It's positively buoyant, and floats above your valve, so it's easy to see and the light is easily spotted in our often-limited Pacific NW vis. I have tried now about 3 other flashing marker lights, (some costing as much as $40) and am most impressed with this hard-working little light.

A vital part of any outdoor enthusiast's equipment bag, the Eco Flare can be set on constant, high-output mode for use as an area/personal locator light, or on flashing, red Ultra-Bright LED mode for low-visibility, dark nights. The Ultra-Bright LED will burn in excess of 500+ hours on 2 (included) AAA alkaline batteries. The Eco Flare can also be attached to your dog's collar for easy identification in low light conditions.

Light comes with a built-in clip and lanyard for attachment to gear or pet. The LED provides 10 lumens of brightness and the light weighs 1.48 oz. (42 g) with batteries. Light is available in multiple color choices, is made from high impact polycarbonate plastic, is Depth Rated to 330' (100 meters) and comes with an owner's manual.

Warranty Information

This product has a limited lifetime warranty.


Princeton Tec, Eco Flare Features

  • Princeton Tec, Eco Flare
  • Constant, High-Output, Incandescent Mode
  • Flashing, Red Ultra Bright LED Mode
  • 10 Lumens of Brightness
  • Burn Time: 500+ Hours
  • Power: 2 x AAA Alkaline Batteries (included)
  • Great for Pets!
  • Depth Rating: 330' (100 meters), IPX8
  • Construction: Impact Resistant Polycarbonate Plastic
  • Weight: 1.48 oz. (42 g) with Batteries
  • Wrist Lanyard
  • Built-In Utility Clip
  • Available in Multiple Color Choices
  • Owner's Manual

Princeton Tec, Eco Flare Customer Reviews

Review Summary


(based on 50 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Most Liked Positive Review


Cute Light, Small Package

Light comes with "constant on" LED (White) -AND- "flashing" LED (Red). I chose this only as a tank marker light, as it really doesn't have a "beam" like a dive light. Bought two - one for my wife and one for me. Product is compact and lightweight, which is perfect for combatting the ever decreasing weight restrictions on airlines.


Most Liked Negative Review



Just received a second replacement Eco flare and like the first there doesn't seem to be an incandescent function. The product description says the unit has both a flashing function and a krypton bulb for continuous output. At this point only the flashing function works ... Frustrating.

Reviewed by 50 customers


Solid inexpensive light


Does what it says. I like the red flashing light, but the solid white one is a nice option.


Bright at night.

By David B.

from Everett , WA, US

It's bright at night. Flashes a little faster than I like. But that would be an opinion not a fact. It works exactly as designed. I'm thinking about purchasing a second one as a backup.


Effective tank marker

By Jeffrey H.

from ramsey, NJ, US

Easy to use, just twist the top to turn on and off. Good overall tank maker. Comes with a red LED blinker bulb.


nice light

By eric a.

from Foxborough, MA, US

I really like this light! We attach to our tanks for night diving. Gives everybody an idea of where we are while diving. Not too bright to be obnoxious or distracting. Great price and comes with an extra bulb and lanyard.


great light


from Portland, OR, US

I have purchased many of these lights over the years and have found several uses for them beyond diving. They are perfect marker lights for walking our dogs at night, and I always have a pair of them in my hunting pack for emergency situations. They are very durable except when they are subjected to the jaws of a young Lab ;-)


Small, simple and robust

By Jorge I.

from Buenos Aires, CABA, AR

This small flashlight is very simple in its operation, with power by adjusting the thread of his head. It comes with a flashing red light and fixed light white one. I changed the red LED and put the fixed white light because I need that soft light for night diving and use it both on and off the water. I have another with very visible red LED on the agua.No emits a very bright light, not for that, but grants a soft ambient white light within about a meter and a half (5 feet), is strong, cheap, simple and durable, as water leakage prevention, I put silicone grease in the screw head yo'ring. Very good product.


Great marker light for night diving

By John O.

from Edmond, OK, US

If you are looking for a marker light for night diving, look no further. At first glance, it seems a bit large for a marker light but when used underwater, it's great! Easy to keep track of my wife because she has the brightest marker! Should have bought 2 so she can keep track of me!!!


I can see the light

By Mario G.

from San Antonio, TX, US

Easy to see by other divers because I clipped it to the back of my BC. Outstanding in night dives. They see the light blinking and follow me. It can also be attached to a weight at the bottom so the students know they are in the right area. This works great in navigational training. Gives the students something to shoot for.


it's good, had one for years...


from Manhattan Beach, CA, US

Think this one has been a little more reliable than others that I've owned. Mine did not have any indication as to how to orient the batteries - not a big deal, I just figured it out and then marked the inside with an indelible marker pen. I remove the batteries when I store the light - and now when I'm ready to install batteries and use - I know which way to orient the batteries without having to experiment. Make sure you have some silicone grease, tightening the dome on is tough without re-greasing the o-ring.


Nice backlight

By yan

Nice backlight for night dive.


very good marker light

By Carribean d.

Great Leisure pro service.


Great simple light

By Matt

Nice reliable light. I've never had a problem. You won't use it to see underwater (you need a real light for that), but its used for safety. Comes with both a solid white & a red flashing bulb (interchangeable).


Just Enough

By Zoop

Easy to put on your tank.


Great price, service!

By Oc-lil

Useful item. We are requiring them for our outrigger paddlers.


Awesome, really compact and efficient.

By Kahoe

Best use for strobe light


Questions & Answers

Questions about this item:

Shopper  Why Did You Choose This?
MARITERE I  Very good item and brand
Richard B  Uses AAA batteries not 3LR44
Robert S  Looks like a high quality light. Not too fragile.
WILLIAM S  I have used this for years. On last trip it was lost. It floats up so not hidden by tank as some others are, easily seen from all around.
Edan K  I"m going to use this as an ID light during nights dives
Gena B  It seems like the best fit for my first night dive!
Hanford G  I like night diving and this came with a spare white LED that is non-strobing which is nice when i want to use it as a glow stick...nice all around flare...
ALAN C  Nice small tank light used on night dives. I often clean and lubricate o-ring seal with silcone grease at every battery installation. Do NOT over tight lens may cause cracks in lens cap.
Border Services Connor U  Best light for marking, highest battery life
PETER M  Why fill up the landfill with chemlights? Great marker for night dives - just attach to tank valve.
mark c  reliable and the red blinking LED is bright for night dives in the cold waters of new england.
Paul K  Had previously owned same product. Reliable and functional for night divingâ?¦I secure it to my tank as it blinks on and off, my dive buddy knows where I am! Susan McGraw Keber
CHUCK C  Mistaken purchase.
DAVID B  Works well as a tail light
DAVID B  Works well as a tail light
DAVID B  Works well as a tail light
FRANCISCO J U  is nice for a night dive it flashes and you can atach in any place of your geear
William W  A gift to be used in conjunction with the other two lights on night dives.
Paul R  Safe and small dive safety light for night dives. Paul PADI Rescue Diver
Vincent C  Is this U.S. Coast Guard Approved to replace pyrotechnic hand held flairs?
Peter V  NO. It is a tank marker light for diving.
Hollie M  Just put in batteries and nothing is happening. Is there something else I need to do as well?
Roger L  3 items to look at: 1 - Batteries installed correctly in battery housing (+ & -) 2 - Light module only works one way. If light does not turn on, reverse the position of the light module in the battery housing 3 - Unsure that the lens is tightened down all the way to activate the light
Hollie M  Thanks everyone! Problem solved. Bulb was faulty. When I put in the other one it worked.
DAVID S  You need to twist it down like most of the underwater lights. Battery reversed, or dead I had a couple dead ones in past. Great light I have had several last long enough for 4 or 5 battery changes or 4 to 5 years. Keep an eye on the oring you can get at your local Ace hardware usually. Good luck and happy diving
Ken K  I had no problem with the 2 that I bought. Make sure the batteries are inserted in the correct directions.
TERRY S  Make sure the batteries point in opposite directions. A common problem over time is the contacts in the bottom corrode so you can put a small piece of aluminum foil in the bottom for a better contact. Terry
DON M  Did you try reversing the battery position the lamp is polarity sensitive, also wipe the lamp contacts with a paper towel dipped in alcohol to be sure you have a clean contact area. Lastly does the internal assembly make good contact with the batteries?
DAVID C  Make sure batteries are fresh and thy are installed the right way and to turn it on you need to twist it all the way down
Hollie M  Thanks. Did all that already. Tried different batteries as well. Tech support said it must be faulty.
DAVID C  Then if it does not work then probably bad bulb.
WILLIAM M  screw the top down until it comes on (if i remember right)...I gave this away as a gift. Check polarity on batteries?
Hollie M  Thanks. Did all that already. Tried different batteries as well. Tech support said it must be faulty.
WILLIAM M  well that is a bummer. Sorry. Dive well:-)
JUAN C  Light is triggered by pressure so you'll have to acre the top in tightly to test it.
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