Really bright, can see at dusk even and makes ...
347265
Really bright,can see at dusk even and makes your car stand out,inly complaint is the sticky tape doesnt hold very well and the strips aren't longenough to do a whole vehicle perimeter,you need to order two sets.
2733942
Get it! Works great, very bright even at dusk, and the battery lasts quite a long time. The mount is nice, not perfect, but nice.
3509964
Really does allow me to see my fur kids in the dark while they are running around in the yard. The light is bright and you can change the settings to make it blink if needed .
4491381
Really bright, more of a floodlight than spot beam, hard to make them not flicker a little from the alternator on my kawasaki  mule at slow rpms, but they do make a lot of light.
1763355
Super bright and functional with dusk to dawn motion activation.
1718262
As many reviewers have stated earlier, don't expect these little lights to provide headlight type light in the dark. These are perfect for being seen while riding at night.  I was very impressed when the first time i used them I stopped on a very dark side street to check my phone and I noticed a blinking reflection on a stop sign that was about 75 yards away.  I actually turned around to see if a cop car was coming from behind me.  Much to my surprise its was my little headlight that I verified by changing it to a steady light. Install is easy and limitless, you can have the velcro run parallel or perpendicular to the light. I actually mounted my tail light under my seat by moving the rubber/velcro 90degrees and strapping the velcro around the seat supports, you cant even tell its there until I turn it on at night!
2899737
High quality and bright light made of cast aluminum and came with all lag bolts and even wire nuts for the install dusk to dawn sensor works very well I leave it on and it cuts off at dark so I can see around my shed
2522448
Great sight and very bright in most daylight conditions.
3019519
This tail light is bright, so bright that flashing mode is rather annoying, though the "kitt" mode is tolerable while still highly effective at making the cyclist a visible presence on the road - during daylight in the city, it's quite good.  The intelligent design superbly exploits the parameters of the light from both rear and sides, creating a lit and reflective surface area that seems much larger than the light itself.  Two of these together on constant mode look just like one of the tail lights on my Toyota wagon rolling down the street - it's that good, so good and so affordable that I ordered an extra.  Easy to install, and the light clips onto the mount securely yet is quickly and easily removed to prevent theft.

The LED lights aimed out to each side are pure genius.  You can actually see the tail light from about 45 degrees from the front of the bike, much like the wrap-around lights on cars.  The package says not to aim the light at people's eyes for a reason - it's almost painful, even at 40 feet.  I had to aim mine a little low to prevent antogonizing traffic, but even in that position, the light is still amply bright and then some.

With two placed together on constant mode, I went night biking at my folks' place in the country as a test.  My parent's said the lights were still noticable in the country dark when I was half a mile away.  They said I looked like an older model car with one tail light out puttering slowly down the highway.  Nice to know that's what drivers coming up behind might be expecting.  Won't they be surprised?  I mounted mine one above the other, which creates one big square of light.  This is a better light than most and does its job for less.  PDW did good with this little puppy, and I highly recommend it, especially using two in tandem.
1124803
holy cow this is bright. put two of them in my garage and when the sun goes down and these are on, you would swear the sun was still up. Bright, crisp light. glad that these have become more affordable and I could put a couple in my garage. I did have to get the converters so that it would fit into a regular socket.
4552532
Extremely bright and gives the back up feature on the car a much wider view at night in unlit areas.
4394032
I feel very visible now. Flashes and pulses are great, Illumination is pretty great on roads after dark. I have not yet tried in the wilderness after dark.
2913586
Much brighter than I had hoped it would be
3174391
Haven't had a chance to go camping with this lantern yet, but after testing it in the garage, I can tell you that this lantern is super bright.  I like that this is bigger than the other lanterns on the market, because 500 lumens coming from a small lantern isn't the same as 500 lumens coming from a bigger lantern.  Batteries were easy to install, just line up the arrows, twist to lock, and that's it, you don't need a PhD in engineering to figure that out.  After installing the batteries you'll notice a green flashing LED light, this is for locating the lantern during a blackout, which is pretty well thought out.  I forgot that it had two levels of brightness, so when I first turned it on, I thought that the first level was bright, but when I pushed it again, it became super bright.  The construction quality is there, looks rugged and I'm confident that it will last a long time.
3269624
Great Tail light. Really bright. Can be seen at great distance.
2511710
For the price, this light is blindingly bright! I didn't believe that this would really light up the outside but it actually provided quite a bit of light outside.
4569057
I can't believe how bright these lights are for only being 4W, they really put out a lot more than my old incandescents. Their light temperature is cooler than I expected but I think that is due to my older incandescent bulbs next to it are really warm (2K-2.5K).