Features  
1. Power: Ebike rear light is 1.5W                                                                              
2. Input:  Tail lights: DC 6V/12V/24V/36V/48V/60V                        
3. Bright:  Ebike Tail light 40 lux                                                                                   
4. Material: Ebike tail light:Plastic                                                      
5. Wire: Tail lights: 1 meter                                                                  
6. IPX4 waterproof,heavy rain waterproof    
  Note  
If you use the Bafang intermediate engine to power it, it won't work (because the Bafang engine only provides 6V3W output to the lamp), but you can connect the battery directly, it supports 24V-48V.
  Advantages  
1. Big beam angle 180 degree,different direction can see the electric bicycle rear light. 2. Wide voltage input:fits most e-bike.