Terrible in so many ways. The only good thing about this light is that when it's on high, it is very bright, THAT'S IT. Installing is a breeze, but even on the thickest part of the handlebar the strap is still too loose. It slides too much, not enough grip. And what makes the loose strap worse is the fact the that the power button is very hard to press. Picture this. You have the light strapped in, it's dusk and you don't want to stop peddling. You are going to power on your light, you have one hand on the bar, and with the other you are going to power on your light. Remember, the strap is loose, light slides easily, button is hard to press. As soon as you push the power button the light shift downward or upward. Now you're distracted trying to adjust the light and looking for the button again. You can get seriously hurt or worse, hurt someone else. Someone with minor arthritis would feel pain while trying to power on the light or cycle through the different (cheap) modes. About the modes. You get high, medium and low. Pulse, and strobe. In high mode, it shines bright. In medium, "meh". Forget about low, you can't see anything on the ground or directly in front of you. Pulse is just absolutely useless. The light output is too low. (While riding at night on a poorly lit road, you need some kind of strobe or pulse so others can notice you. It is absolutely necessary because your little light can drown in a sea of car headlights.) You can't see what's on the ground. Any biker can tell you that when riding at night it is super important to be able to see the ground way ahead of you, not just a few feet ahead, but several yards. I don't know what the designers were thinking when the put the pulse mode on this light. The strobe mode is not even strong enough for drivers to notice you during the day. And at night, the strobe sequence is not right at all. 3 quick flashes, then lights out, again, 3 flashes and out. Not useful at night, and again, you can't see the ground ahead of you. Another bad thing about the light is that you have got to face it almost straight at the ground because it hits other bikers right in the kisser, and we all know that that is just rude. Now in doing this you can see the ground at night, but you can't see ahead of you or others on the road ahead. Battery time is excellent because YOU NEVER USE THE HIGH MODE! All other modes don't use that much power because they are too low. At 60 plus dollars, it could have been better. One last thing before you rest your eyes and disregard this review. Good luck trying to keep the mini usb connected to the light. It's too loose, and the cable is too short. You can probably or definitely find a better, and less expensive light in the sports section at any Walmart. Please keep in mind, Bike Tires Direct DOES NOT make this light. So if you do buy it, and find that it stinks. Don't blame them.
Pros: very bright on high (which is useless unless you are all alone on a very dark road, and riding slow.)
Cons: everything else about this light.
Don't believe me? Go ahead and try it. Exercise your thumbs before you do.
Hope this helped.
A group of us do a fast paced after-work ride to the beach and back on a paved quick-moving bike trail, and I recently stepped up to this light from a perfectly great Night Rider 350. The Blackburn's 1000 lumens is a big difference in brightness- almost as bright as a car's headlight from the perspective of riding the bike. The light can be easily adjusted to the left or right in small increments, and also up or down to gain a better high visual horizon and surface appraisal.
The BLACKBURN DAYBLAZER 1000 itself is a great light. The only slight problem is that you must remove it entirely from your bike in order to charge it. The rubber strap that it attaches with is quite strong, so a bit difficult to remove and replace. I finally figured out that I could rotate the body of the light 90 degrees, which made the remove/replace task easier.