Very bright and runs cool.
594708
Great light. Very bright and runs cool. I'd give 5 star if the cord was more flexible/supple.
1665015
It's quite bright, especially for LEDs. It projects a pretty cool pattern of red, green, and blue. It does NOT cycle the colors, nor is it responsive to music. You turn it on, it lights up and spins. Simple. The workmanship is not bad but not great. 3 of 6 of the ones I ordered kind of 'stick' for a second on each rotation. The other 3 are smooth. I have not tried to fix this yet, the plastic dome is simply screwed onto a metal spinning post with a screw, so it may not be too difficult to fix- maybe a sharp edge of plastic, some glue, possibly a stripped gear, or something else may be causing the problem. But the colors are extremely vivid being LEDs, and I'd say it projects well over 180 degrees, possibly 270 degrees. It's visible across a somewhat sunny room. And it looks cooler with a fog machine.
Overall, it was around $6 and they all work reasonably well. You really can't go wrong with these for the price. I can't wait to use them with my Christmas display.
2958350
I replaced regular incandescent BR30s with these and was very impressed at how much brighter and cooler they are.  They are so bright that I usually run them dimmed, and they are still superior to the ones I replaced.  Seems like a good build quality, and the light color is a nice comfortable white.  I would not hesitate to buy more.
2913586
Much brighter than I had hoped it would be
1229893
It runs a little noisy but flows well and lights up nicely.
2995551
These bulbs are bright-almost to the point of blinding. You can turn this puppy on during the day and you can tell that it's on. The bulb also stays cool, unlike the CFL that it replaced. I use it in one of those cone-shaped drop lights that you can get at Home Despot. Although its a bit long and it sticks out by a hair. Also feels of good build quality, I dropped it once and it didn't affect it. Been going strong with daily use on a timer for the past couple of months. I had to buy another, not cause I needed it, cause its that darn good.
4701565
It is extremely bright light, I used this light as a work light. My only issue is that when turning this light on after 30 min. it become very hot. I don't know if it is normal or not I wish it wouldn't be so hot. That's why I gave it 4 stars.
4272872
Much brighter than the 45watt incandescent I replaced. The only note is that these are a very cool white in color (not warm). It worked well for me since they are behind a tan glass fixture.
2213216
It's light weight so it's not hot. It really lights me up for our 4:30am runs increasing my visibility to cars.  I love the changing changing colors. The straps stay put once you adjust them.
928306
Big, fairly quiet, moves a lot of air. The blue LED light for the Ionizer feature is very bright in a dark room (bright enough to cast shadows in a completely dark room) but compared to other fans with tons of flashing lights and colors I'll take it any day.
1633919
This is sooooool cool. Much better when the lights are out.
84050
awesome bright, have yet to night-ride because it's around 10 degrees F, but i AM tempted, i ride mostly during the day,
 but people try to run me over during the day , since it's through a separate relay, i leave them on during the day
2646633
Installation was easy except mine was high up a pole and had to climb pretty high.  Easy mounting and easy wiring.  I just did wiring with heat shrink butt connectors and a heat gun also I used a water proof tape made for installing submersible water pumps but that was probably overkill no doubt.  It has a very bright and white light and compared to my previous 150W incandescent one this one give more light.  Now time will tell eventually about how it holds up to the weather.
6258
Yeah, it's pretty bright.  Need to tone it down a bit, but the sounds are nice.
3226505
pretty bright. had it for years now.  still running great
1689468
very well built, very bright and doesn't require a power supply, as it runs off the same voltage as everything else on my bike.
4684020
Nice bright light. I had old style light bulb that is so hot and energy vampire. These LED bulb is cool and very bright. Perfect replacement for the bathroom vanity light.