Here’s a great review by Andy aka Rut on MTBR.
So last night was the first night I have been able to use our new Lezyne Super Drive lights. I mounted two on the bars and headed out for a few hour ride. I turned one on low and proceeded to do get into the 1 1/2 hour climb. With another person behind me, I was being “flooded” out by their light, but that was my doing. I did, after all, have the light on low.
Once we got to the top, I turned both lights to full power and was amazed by the power of the lights! Holy Shimoly! My riding buddy was using another brand of lights which were brand new and we both decided the Lezyne Super Drive lights simply covered the singletrack better. It had a wider coverage and was bright as hell. Both of us had two seperate lights on the bars.
I love the USB port for plugging it in and can’t believe how small the entire unit is. Not to mention having no battery pack is simply mind blowing. The whole unit is on my bar mount. Incredible!!! Oh, and it weighs about 125 Grams!
The only draw back is it lacks a helmet mount. Once Lezyne comes out with a helmet mount this unit will be unstoppable!
I am not affiliated with Lezyne in anyway and was really surprised at how awesome this unit is. There are tons of other technical info about this light to be found on the net. I believe Francis has posted some stuff on it too.
If you are interested in purchasing a light, check into this unit. I love it.