Instructions ***( they don't show the button on the light?) Hardware * Cheap plastic clamps inferior to RockBro's all metal, but costs more Batteries ****** USB charge both controller/ light . 18650 internal battery, easily upgraded quality. Performance So far ***** Laser ***** Ease of turn- signals use - HUGE FAIL for other types **** Need kill switch Brightness ***** Features ***** No false advertising, does lots more than instructions say. Shipping, about 2 weeks to Ca USA. Controller *****better than any other I've tried. Recommend: Buy. A bit pricey but exactly right for a high tech bike/ e bike. Laser is awesome. Psychedelic tail-light combinations, pretty crazy. Simple learning curve, improved control. Two attachments: Seat post and Seat frame. Both worked for me. Another must have.
Sent very fast. Visible very well in the dark. Very easy to use.