The world's most in-depth and scientific reviews of outdoor gear

Ultimate Survival Technologies 30-Day Duro Glow Review

A durable lantern with exceptional battery life.
Ultimate Survival Technologies 30 Day Duro Glo
Top Pick Award
  • 1
  • 2
  • 3
  • 4
  • 5
Price:  $50 List | $26.00 at Amazon
Pros:  Very long battery life, tough and durable, provides a nice soft diffused light
Cons:  Glow-in-the-dark doesn't work very well, hook on the bottom is not very sturdy, hard to reattach bottom after replacing batteries.
Manufacturer:   Ultimate Survival Technologies
By Ben Applebaum-Bauch ⋅ Review Editor  ⋅  Nov 19, 2018
  • Share this article:
70
OVERALL
SCORE


RANKED
#5 of 13
  • Brightness - 35% 8
  • Ease of Use - 25% 7
  • Durability - 10% 8
  • Features - 10% 6
  • Weight - 20% 5

Our Verdict

The UST 30-Day Duro Glow is a tough battery-powered glow-in-the-dark lantern that lasts for 30 days on its lowest setting. By 30 days, we mean for 30 days straight, day and night, for 24 hours a day. It is bulkier than many of its competitors, so it's not going to be a backpacker's dream by any stretch of the imagination, but it's a quality light for anything front country.

If you're looking for something much brighter, check out the Coleman Northstar. If you're looking for something that doesn't take any batteries or propane, take a look at the LuminAID PackLite Max.


Compare to Similar Products

Our Analysis and Test Results

The UST Duro Glow puts out 30 lumens on the lowest setting for 24 hours a day and just keeps going and going and going. It lasted for 33 days in our testing, using a set of generic batteries. It glows in the dark, has four settings, and a sturdy, rubberized, impact resistant base.

Performance Comparison



This mid-size lantern offers solid utility  especially when getting the most out of your batteries is a top priority.
This mid-size lantern offers solid utility, especially when getting the most out of your batteries is a top priority.

This light scores well for its brightness and durability. It doesn't have any glaring weaknesses, there are just a handful of minor annoyances that hold it back.

Brightness


This light puts out a very respectable 700 lumens on high and can do so for just over 22 hours. The frosted dome makes the light softer than it otherwise would be without it. The medium setting puts out 140 lumens (for up to 106 hours) and the low and SOS modes both glow at 30 lumens. You have the option of taking the dome light cover off and hanging it upside down by its plastic hook in order to illuminate a larger area with slightly more light.

The 30-Day Duro Glow has three settings; high  medium and low.
The 30-Day Duro Glow has three settings; high, medium and low.

It doesn't have the same dimmability as many of the other models, but its longevity makes it well worth keeping around.


Ease of Use


It's fairly easy to use. Press the power button successive times to cycle through each of the light settings. The light cover detaches and attaches easily, however, we found that the battery compartment lid/bottom isn't as simple — it's just tricky to line up the two pieces to screw them together smoothly.

This light stays put  even on loose and soft surfaces.
This light stays put, even on loose and soft surfaces.

There are no feet at the base. However, between its weight and the gripping rubber base, we felt good about setting it down on relatively flat surfaces and confident that we weren't going to knock it over.


Durability


The 30 Day Duro Glow has a rubberized housing which makes it a very durable product. UST claims that it is water resistant, not waterproof, but we did submerge it in a river during testing and it came out totally fine. If you're looking for something waterproof and a little smaller, check out the Streamlight The Siege, which is a similar but much more compact product.

We just don't quite trust the hook on the Duro Glo the same way we do with the carabiner on the Streamlight The Siege.
We just don't quite trust the hook on the Duro Glo the same way we do with the carabiner on the Streamlight The Siege.

It didn't fail during testing, but we think that hook which enables the lantern to be hung from above could be one of the first pieces to break. The lantern is relatively heavy and the hook is just not very sturdy plastic.

Testing lanterns' claims of waterproofness. Both of these models passed with flying colors.
Testing lanterns' claims of waterproofness. Both of these models passed with flying colors.


Features


The UST Duro Glow has a bunch of subtle, but useful features. This light has four lighting modes; high, medium, low, and SOS strobe.

The SOS strobe setting is not just synonymous with flashing. It actually pulses light in Morse code, spelling out S-O-S

It glows in the dark — not as well as we would like, but just enough that you can see it a few feet away at night, say, in a tent. If you charge it up next to a very bright light source, it glows in the dark a little bit better.

It's not a UFO  this light glows in the dark so you can find it...before you knock it onto the floor in the dark.
It's not a UFO, this light glows in the dark so you can find it...before you knock it onto the floor in the dark.

You can also unscrew the dome lid and hang it upside down by its plastic hook to increase the illumination area. The plastic hook is not super sturdy and bends when taking it out of its snapped-closed position. The base is hefty. Because of the tacky rubber material and the lantern's overall weight, it certainly won't slide off of a table. However, when you unscrew the bottom to replace the batteries, it is kind of difficult to put it back on. See the Ease of Use section above for details.


Weight/Size



The Duro Glo weighs a little under 2 pounds with three D batteries installed. It measures 7.2" tall and has a diameter of 3.75". It is not as light and compact as either of the Black Diamond models we tested. This light probably isn't going to accompany you in the backcountry, but it is much more compact than the Coleman Northstar, and of course, does not require any of the same messy fuel canisters or a mantle.


Best Applications


This lantern is best for car camping, RVing, or if you live somewhere dark like Alaska where you need a product that can run on a low setting for a very long time. This lantern can run on low, 24 hours a day for over 30 days. It will slightly glow in the dark and very sturdy and durable. If you're looking for something that doesn't take any batteries at all, check out the MPOWERD Luci 2.0.

Value


The 30 Day Duro Glow has an MSRP of $50 and comes with a limited lifetime warranty. If you don't need something very bright but need the batteries to last a long, long time, this is your product. It will run for over 30 days on low. This feature is great if you need to save battery life. The glow-in-the-dark feature doesn't work very well. The Streamlight The Siege is a very similar product that doesn't last as long on low, but for the same price it does float and is waterproof.

Four top contenders for your next camping adventure.
Four top contenders for your next camping adventure.

Conclusion


We love that this light has the capability of running on low, 24 hours a day for over 30 days. On high mode, it puts out a nice 700 lumens. This lantern is sturdy and durable and would make a good addition to any car camping box, RV outdoor lighting option, or emergency kit. It earns a Top Pick award for use during power outages because of its awesome runtime.


Ben Applebaum-Bauch