Review on LEZYNE Macro Drive 100: The Best Electric Bike Light with 1000 Lumens, Auto Dim & 6-12v Input by Xiaomeng Chang

For $80 this is one hell of a light, but I'm not sure it's *the best* for actual mountain bikes. If you're going for daily flat terrain riding then it's fine. When you're on more advanced and rough terrain, it tends to shimmer a bit on bumps. The mount that the light lives on is not so rigid. If you pair it with another helmet light you'll probably be fine as your helmet light will fill in enough light that you can't see the flickering. Installation was easy (YT Decoy). To install it, simply remove the 2 bottom bolts on the stem and replace them with the bolts and a couple of spacers that came with the light. The light comes with a very long cable that can easily reach the terminals on the motor. The YT already had a wire to the motor with the pins (+/-) already installed. All you had to do was connect the + to the + wire and the - to the - wire. To connect 2 wires you will need wire strippers and some electrical tape. If you have shrink wrap it will help with durability. Of course, it costs $80. But I might end up gritting my teeth and getting a nicer/brighter light if I drive a lot at night.