CDLM1:One output / it’s battery voltage 

CDLM-D:Two outputs / it’s battery voltage 

CDLM-12V:One output/ it’s 12V 

CDLM-4/6V:Two outputs / it’s 4V or 6V 

The light is 50% brightness under 4V for day light function,the light is 100% brightness under 6V for brake light indication function while you brake the ebike 

CDLM-9/12V:Two outputs / it’s 9V or 12V 

The light is 50% brightness under 9V for day light function,the light is 100% brightness under 12V for brake light indication function while you brake the ebike 

Waterproof level IP65

CDLM-6V:One output/it’s 6V 

CDLM-D6V:Two outputs/They are all 6V 

CD_12Vkey:Intelligent lock and controller switch the circuit and supply power to the lock/12V 

Waterproof level IP65