I bought this 4 pack because of excellent reviews and best per unit price. Turns out not a bad choice, and I'm adding another 5 star review. The rotating lights mode might be the most useful during road emergencies, so I tested it with 3 eneloop batteries to see how long it actually lasts. After 10 hours, batteries were mostly dead but lights were still flashing as bright as with fresh batteries. Very impressive. Lights are very bright and should be seen even in daylight. It comes with instructions how to open the back plate to install batteries. Back plate is installed pretty tight for water proofing. Without reading the instructions I would probably have tried to pry it open using a screwdriver or something and damage the housing. In case you are wondering - there are two tabs in the 2 o'clock and 10 o'clock location to give you some leverage to pull the back plate off. Also interesting that seller mentioned not to use regular or cheap alkaline batteries because they eventually leak and ruin the device. That's my experience too. Even "good quality" duracell and Costco kirkland batteries are prone to leak after certain years. Energizer max and Energizer lithium primary are the only two types don't leak, or try LSD NiMH rechargables.

These are great lights! Work better than described actually! Was so pleased with the first set I ordered another. Update 8.17.18 I used zip ties and placed two of these on the back of my 14' Hobie fishing kayak as it sticks out the bed of my truck quite a ways. At a top light a State Trooper stated he thinks they are great and much better than just a simple red flag or shop towel he sees so often. I did not remove them while using the kayak and one took on a bit of water, but after I drained it and dried it out a couple of days it worked fine. I inquired from Garage Monkey (seller) if they had waterproof ones and was advised these should do just fine. I explained one got a bit wet but works fine and I was going to apply some silicone sealant around the screws and the magnet area to test them again. Rod, the owner advised me he has sent two free replacements at no charge!!! Amazing and Outstanding customer service that is far above what anyone would expect!

These work great recently driving in penn on route 380 in the Pocno mountains it was on the early evening and about a 1/2 mile ahead I thought was seeing things, and as I was getting nearer a car was on the side and having a tire changed, the drive had just two of these lights on the road but it did make it easy to spot. I keep mine in the car and ready to use they are great.

This product of the LED ROAD FLARES , BY GARAGE MONKEY are amazing. My husband and I travel on a major highway in Missouri and after reading and viewing the video I was convinced we needed to keep in our cars. Much to our surprise Missouri had a snow storm which halted miles of traffic from stalled automobiles, and autos not being able to drive on the snow packed 8 plus inches of snow. We had our flares in our 4 wheel drive. Although not needing because of the capacity of our truck. Thinking the dangers of many being pushed the LED ROAD FLARES, BY GARAGE MONKEY would of been of great help for the safety of individuals helping others in despair. If my husband was younger he would of been one of those individuals plus using the flares for safety. Please everyone reading this review take the time to look at the video. This may save your life and many others. I have 3 children with grandchildren and the safety for them to have in their vehicles are peace of mind for Nana, and Poppa D., Thank you Garage Monkey Your Flares could been seen from a distance for safety. As we all know when we see flashing lights regardless tow trucks, police we slow down for the safety of the individual on the side of the road., Take precaution for your safety. PHOTOS., SHOWING A FULL SIZE FORD PICKUP ON TOP OF A FLARE . THE FLARE SUSTAINED A FEW MARKS FROM THE PEBBLES BUT DID NOT CRACK OR DISTORT AND STILL WORK PERFECTLY.

These LED Road Flares seem to be available from a lot of different web sites and they all look the same to me but the prices varied a LOT from one web site to another. When I received them I was not disappointed. They look well made and function perfectly. And this website had them for the best price by far. (when you figure the per unit price) I ordered 3 sets and maybe I should have ordered more. By the time I put them in my vehicles, my wife's and kids vehicles and gave a couple to friends, I almost ran out! every car should have several in the glove box!

These are great emergency LED lights and should be in every vehicle in America! They are well made and with the various selections of light display modes you can find one to get maximum attention like the one that appears to go in a circular cycle or pick on that flashes at longer intervals to give more battery life. I have bought at least 25 of these for our family from various vendors over the last 5 years and they are worth their weight in gold. Get some!!

I got these to put in the “bug out kit” I put together for my daughter, as we live in California - land of if it ain’t one natural disaster it’s another. I do love it here but I feel it’s foolhardy to be unprepared to evacuate quickly. Anyhow I had bought a different brand of emergency flashers when I was putting together some things two years ago. While those were certainly serviceable my husband and I couldn’t believe these flashers!! Wow! They had so many different red flashing light patterns I felt like it was a fireworks display. And it also has a pure white flashlight option and a hook to hang it such that it can illuminate any under the hood investigation and/or repairs. Even though my husband and I still have our first sets, we decided that we should each take two from a new set because they have so many capabilities. Each flasher takes three AAA batteries that are not included but you can’t expect them to be at this great price. Love them.

Since Road Side Flares are pretty much a thing of the past and illegal in some states, due to FIRE concerns. This is the next best thing. They come in a Four Pack, so along with your warning Triangles you should be carrying, these Hi Intensity Flashing Light are an added safety measure if you become BROKE down on the Hiway. Can't Miss them at night. An excellent product and very well priced.

Update: Seller replacing defective flare. This is why I buy on Amazon and will recommend this product to all family and friends. One of four flares doesn’t work. Can’t get replacement, just return credit. Price doubled in 2 days. I won’t return and reorder for double price, no other options. They work great, when they work.

These devices requires three AAA batteries each, and the batteries are not included. The manufacturer recommends using Energizer MAX batteries, as they have a ten-year shelf life and are less likely to burst and corrode the devices. Installing the batteries requires a screwdriver, but it's a quick and easy task. I bought a 24-pack of the MAX batteries and stored the extra twelve in a Storacell caddy (available on Amazon for about $6), which fits inside the supplied storage bag, on top of the flares. I expect the flares will run for many hours on one set of batteries, but now I'm prepared for anything. The flares have multiple flash patterns that cycle with each push of the power button. A long push turns off the flare completely. There is a fold-out hook on the back in case you want to hang the flare from something. Otherwise, it lies flat on the ground.