this is a good light. It offers a bright beam
593014
If this were a 20 or $30 flashlight, I could find some negative things to say about it.  But at under $10, this is a good light.  It offers a bright beam, it does not drain the batteries, it is rugged, and it seems to withstand quite a bit of water. Also, the switch is easy to manipulate, the latch is good, and batteries are easily changed.

Kudos to Dorcy.

I do hope that the consider offering a light with a fully rubberized shell, as they had before, not too long ago.  What happened to those?
572144
There's plenty of light from this little flashlight.  The focus feature for the beam is very useful.
530067
It is a little early to review as I haven't used the light too long, but I think it will be fine. I use a flashlight all day in my work so I am picky. I have had switches fail and connection problems with other lights in the past, so far this seems pretty solid.
I will admit it is very bright, I can use it on the low setting in most cases, the third mode is a blinding strobe that I don't really use.
The pocket clip is kind of a cheap looking affair and I wouldn't depend on it much.
It gets a bit warm on high but that is to be expected, The rechargable battery is new feature to me and battery life has been good so far with the 3600ma TangsFire batteries I am using, much better than the disposable batteries.
If you are looking for a compact light that kicks out serious light, pick one up. The beam is not too wide and does not adjust.
362135
I really like the light.  It is an LED and quite bright.  The suction cups on the clip are helpful, but the clip is a bit large.  It was hard to make it work on my children's headboards.
924071
I really like this flashlight especially it's broad beam of light as well as the concentrated narrow beam of light.

I've shown this to a neighbor and it's going to be a Christmas present.

I'm also happy to be reassured that the company Stands behind its product and offers to help in anyway possible.
1703212
Like others have said, the light is well made and bright, but the beam is very narrow. I've been compensating by changing its angle throughout the day. Since I'm doing bonsai with it, I'm obviously being OCD anyway, so I guess its fine. lol
731298
I bought this tail light because I wanted to complement my Cygolite Hotshot with a light that has a wider beam. I was going to get the Solas 40, but this was only 5$ more so I decided to go for it.
As far as the light itself is concerned, it doesn't disappoint. It's very bright and the light is concentrated in such a way that light isn't wasted by sending it places where it's not useful, like up to the sky. It's also quite visible from all angles behind and on the side of the bike, which is something I can't say about the Hotshot.
My problem is with the mount. It comes with the Niterider tail light mounting strap which isn't a bad thing. But it was wrapped in the box in such a way that the tab which locks the light in the mount was bent back and now it won't lock the light in. It's as if the tab which is supposed to secure the light is permanently pressed, so the light can just come off from a bump.
For now I'm using the tail light loop on my Topeak trunk bag, but the angle is bad and the light basically points down at the road behind me.
I contacted Niterider support and I'm waiting to hear back from them. If this is handled properly I would gladly give this light 5 stars. But as long as I can't mount it correctly, it's a 5 star light angled towards the ground.

For those who want to know about the laser lanes. The laser lanes are relatively bright, but I can't use them while the light is mounted to a bag, because the light moves too much.

One more small complaint that I have is that to turn off the light, I need to cycle through all the modes instead a long press turning it off, the same goes for the laser lanes.

Update (8/25/15): I contacted Niterider support and they were very helpful and apologetic. They sent me a new one with a certain accessory which I mentioned that I was considering purchasing (as compensation for my troubles). For now I'm raising it to 4 stars. Once it arrives I'll update it again.
3269761
It's good as a direct light for backing up. I only wish the beam was wider for backing up when a plow is in use.
1294409
It is very bright on Hi power, and Lo is fairly bright, too. It has a flashing mode I don't use. Switching between modes is quick, using a half press on the button instead of a full click press. It changes to the next mode whenever it's turned off then on, the only thing I don't like.

The beam focusing is exceptionally wide range; when the beam zoomed in small, it makes it bright enough that the Lo power is usually plenty bright enough. It's small and light enough to hold in my mouth in awkward inspection situations. Charging is slow,  taking about 6 hours if it is almost run down, but 10-20 minutes of charge will let you use it long enough to perhaps complete your work.

I've bought four of them, had to return one that stopped working almost immediately - the internal battery spring fell off.
1443219
This is a good light, but for me, the beam is too focused.  It has a very bright center beam, then drops off to nearly nothing wider than that.  I prefer a more gradual dimming of the beam so that one doesn't feel blind to the sides.  For the same money, the 501b (and maybe the 502b) are a better light. Brighter when you want it and nicer beam pattern.
111308
It works well and is very bright. I actually have bought two different of these Cree Flashlights and I like this one better. It seems a little brighter and the beam is very wide. Highly recommended.
3225417
The main surprise is how bright this light is. And it seems well made, judging from its weight and materials - mostly metal, not plastic. I've been using it for three weeks without need to recharge it. It never fails to actuate and then to turn off. My only disappointment is that I thought it would not come on when there was ambient light (I.e. Enough that additional light is not needed). It always turns on with motion, even in well lit room.  Not really a big deal though, I'm quite satisfied. But that's why four stars and not five.
3135146
Bright light, lights up a fairly wide area, and fairly evenly at the centre.  Compared to my current light, a 4Sevens, Quark 123 TurboX rated at 450 lumens, it is brighter at its maximum output, and throws a wider and more even beam.  The beam is also a little less yellow.

The switch is a bit hard to find in the dark, and the half second delay to turn it on and off isn't a nice feature to use.  I prefer an instant on off, and a press to hold for other modes.  But I suppose this design was to enable quicker access to the strobe mode.  I would give up the strobe feature in exchange for an instant on-off, and to have an SOS mode to cycle through.  The only other design fault is the lanyard hole.  Once the wrist lanyard is attached, the light no longer stands well on it's tail.

Otherwise, this is a great light.  Feels good in the hand, lightweight for such a strong light.  And the really nice feature is that it is rechargeable in the torch via USB.  I charged it off the mains using my Apple iphone charger, and that worked too.
1957903
This is a very good light. Somehow the rubber plug that seals the bottom making it waterproof came out and I can't find it. Other than that it has been a very good light.

Remember that the brightest beam out the back is very much a "spot" beam even though the softer beam off the back is still visible at many angles. To get the best use out of this light, at night stand behind the bike and sight it almost like you would a gun so that the up/down angle is perfect for your bike seatpost angle. Slide right left to get it just right, you want this spot beam hitting just right. Every time I put it on I do the right/left adjustment again.

Being able to charge this from USB is very useful and it charges on every single USB charger I have tried it with.
2965272
This headlamp is a mix of good and not so good. The power to weight ratio is great. This is a very bright light but it only has one 18650 cell inside so the battery life isn't as good as some other lights. The waterproofing done well. Even the charging cover plug fits in easily and is still a tight fit. The head straps are too small for me. I have a large head but there should be enough adjustment to fit large heads. The beam is very focused. At about 20 feet the main beam of light is only about a foot in diameter. The peripheral light is widespread but the main beam is considerable brighter and makes it difficult to see what's not directly in the beam. The two settings for brightness are bright and super bright. I would prefer a much lower light setting for every day use and close up work. This light would be best used for trail running she similar activities where you need to see what's directly in front on you. I do like this light and would recommend to friends if they needed a light with these characteristics.

I review products with the intent to inform you the customer so you can make your decisions. In no way do I give this product a biased review. I purchased this item at a discount in exchange for my honest review. If you find my review to be helpful please let me know by clicking below and feel free to ask questions.
1025029
Yes the beam and brightness is very impressive for 2 AA batteries, but I'm sure if you look hard enough you can find as bright a light for about half the price of this one... But I didn't send it back, so I have to admit I do appreciate the quality that the extra dough gets you in this piece of equipment.
4052116
This thing is bright with a great beam. I installed it in the center of my front rail on my Honda Rubicon ATV to give the dull incandescent factory lights some help.  It is low enough power you can get away without using a relay if you get the proper switch.  I used the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Trail-Tech-040-HBS-01-Two-Position-Handlebar-Mount-Light-Switch/dp/B00JGRAP3K/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Trail Tech (040-HBS-01) Two Position Handlebar Mount Light Switch</a>&nbsp;for mine, we will see if it will hold up.

Mounting can be a little tricky depending on your setup, I found with the oddball sized tube frame Honda uses I had to get creative with&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/KC-HiLiTES-7300-Light-Mount-Bracket-for-0-75-34-1-34-Tube-Clamp/dp/B00852MK30/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">KC HiLiTES (7300) Light Mount Bracket for 0.75"-1" Tube Clamp</a>&nbsp;but in the end it's very sturdy and has not budged or came loose over rough terrain.