MJ-906S Efficiency E-Bike Light

MJ-906S is a powerful bicycle light that utilizes a high capacity external battery pack, while also offering compatibility for the?ever popular E-bike��s power system. When powered by an E-bike��s electric motor, MJ-906S auto adjusts its output within 6V-12V DC voltage. Compatible with mainstream?motors from manufacturers like Bosch, Brose, Shimano and Yamah, Giant.