Brighter than DiamondVision
355891
Like better than the DiamondVision.  Seems brigher.
3698425
I've owned several LED flashlight and this one by far was the brightest and with the most design details. It just looks and feels more expensive than the $30 I paid for them.
799736
I bought the c2 32" and so far am very happy with it. I had to buy seperate mounting brackets to attach it to the tubeing on the front bumper. Its super bright and can easly see down the road 1/4 mile. The light is also white in color which makes seeing even better at night. Im buying another when they get more in
3254728
This light is super bright and larger than I expected it to be. The only con is that the shoe mount could be a little more beefier. So far works great with my HD Hero 2
943258
Brighter than expected, my new favorite flashlight.
2453869
brighter than the similarly priced KJL led.  (Got both today and was able to compare.)
4784987
The T10 30SMD A are so much brighter than the standard bulb that I can see about 20 ft with the backup camera.
957685
I'd heard a lot about Zebralights and never understood what the fuss was about until this light. I bought this to use as a replacement for a recently purchased Black Diamond Sprinter headlamp, which is a great headlamp, but I wanted something brighter. This is not only brighter, but on its brightest setting (which I rarely use), it's extremely bright. The build quality is top notch and rivals my Surefire, only this Zebralamp pumps out way more lumens in a much smaller package. Running with this headlamp for 8-12 miles is no problem and I barely notice it's there other than the fact that it's daytime everywhere I look.
1403321
Very impressive brightness in such a small package.  The upgrade module is very good build quality.  It should last as long as the maglite.

For $24 this is great upgrade and well worth it.  I noticed the bulb pins for a AAA mini maglite are the same as for a AA mini maglite.  I tried the LED module in a AAA maglite and it worked but it's too big to fit the cover and lens over.  If TerraLux could create a AAA upgrade module (140 lumens) then i'd upgrade every AAA maglite I have too!.  they have a 20 Lumens version but I think that's probably not bright enough to merit the price.
3367949
Light up the night with this one.  Essentially blinding in a room or hallway if you are on the receiving end of this light, even without using the strobe function. 800 lumens as a stated output value does not do this justice.  I own several Streamlight TLR products and all are impressive.  This one however is bright beyond description for its intended purposes. Last but not least the integrated high intensity green laser is of course a major step up from the red ones particularly for daylight use.
4537062
I tested several different products before settling on these Brightech LEDs.  Many were either too dim or too blue-ish for my taste, especially on my dark brown deck with a red-ish hue.  "Warm" normally implies a red-ish hue, but I barely detect it with these LEDs.  To my eye they are as bright as Malibu 7W bulbs and significantly brighter than 4W units.  I am very happy with them.  While I have not had them long enough to have any problems I only wish they were a bit more weatherproof with, say, a conformal coating of some sort
438242
Construction - The first thing I noticed was how well made these bulbs are. They are metal construction from the wide base to the narrow LED mount. Unlike typical bulbs with the socket at the bottom, these have the socket on a wire that connects to a square metal electronic board and then connects to the bulb. This leaves the socket and the circuit hanging below the bulb by its wire. This is the only thing I don't like about these bulbs. But it does dissipate the heat more efficiently.

Performance - Here's the real test. Compared to the Halogen bulbs I replaced, these are far brighter and have a much wider beam dissipation with a sharp cutoff at the top of the pattern on low beam (to avoid blinding oncoming drivers). The pure white color makes seeing the road at night much easier on the eyes. It isn't only the increased intensity that aids vision, it's the white color.

Theory -  Incandescent and halogen bulbs are a shade of yellowish orange. Their light emphasizes the colors in the red, yellow and orange part of the spectrum while diminishing the colors of green, blue and violet objects. The result is that some colors look dull at night, like trees and grass, two things you should avoid while driving. Your eyes perceive colors vibrantly in the white spectrum of the daylight sun. That is as pure white light as we get. These 6000K LED bulbs closely emulate the sun's pure white light, reflecting every color of the spectrum very evenly. Result? All the colors look vibrant and rich, allowing you the perception of seeing objects at night much more clearly.

Note: While some reviewers received these bulbs at a discounted price, I did not. I paid full price for these.
219219
I had been using those freebie LED flashlights, but they fail quickly and sometimes turn off when slammed. These are a far cry better. They last longer, have a brighter light and can change the focus distance.
436539
I've ordered the 120H USB Rechargeable Bike Headlight and fell in love with it, now I wish had an even brighter one.  I think the build quality of that light feels more solid than this model taillight, however this light is very bright.  More bright than my old CATEYE, and in the era of distracted driving the brighter the better.  I always use the flashing feature, and love that they charge via USB.  I'm beyond satisfied with this purchase.
1171694
This is an amazing value for a price that is just a few dollars more than OEM replacements. Installation was plug-and-play and hardly took ten minutes. But when the sun goes down these lights really shine. I'm used to seeing a small patch of road illuminated by my headlights but I was not prepared for how much I could see with just the low beam! Across the horizon and every point in between was visible. I chose the reflector type instead of the projector type because I was a bit concerned with oncoming drivers. I am very pleased to say that oncoming traffic do not flash their lights even on narrow country roads where I thought it was most likely to happen. The reflected light seems more diffused than direct and may help reduce the blinding effect on other drivers. The one area that remains undetermined is whether the seals can withstand the moisture we have down here in Florida. I have two older pair of the best halogen lights that are literally full of water. You can see a full 1/2" of water inside the housing so I know this is a harsh environment. The weather seal on the Genssi looks fine and the sturdy aluminum housing looks tougher than normal glass bulbs but time will tell. All-in-all these Genssi LED lights are one of the best upgrades you can buy.
107621
it's at least 3-4 times brighter. drop in install. finally made that old 4 D-cell light useful in the age of LEDs
3280825
A very nice, crisp bright beam of blinding white lite. Good combo of flood and throw. Nice solid strong feel. Typical of FENIX. BUT... the colored LEDs are no where near the same 900 lumens the main white LED is. BUT.... I guess that's the idea. Colored lighting is suppose to be dim for certain low lumen applications. BUT.... the user should still have the option of intensity levels on the colored LEDs as is it is with the main LED. The Green is the brightest colored LED with the Red being the weakest. The darker the more noticeable the colored ones are. They are easily and quickly accessed at least and the Red has an instant access feature. But that's about it. No strobe on the colored LEDs either. This FL is for the serious hunter I think. Now if you are looking for a multicolored FL that has 300ish lumens on all colors , various strobe modes on all colors, blue/red emergency strobe (like on a cops car, my favorite!!) and even different Becon modes and just a fun, cool, little gadget all together, then let me direct you to the EAGTAC D25LC2 MULTICOLOR. Please also check out my review on it here on Amazon.