BYOPTO 1 PCS DC12V 24V 36V Round 6.5" 12W led ceiling light (Red) "BYOPTO" is our registered brand . We never authorize other seller to use this name for selling products. The input voltage can be DC12V, DC24V & DC36V, suitable for RV, Car ,boat and so on. Low power consumption & energy saving,Convenience for installation. You can installation it in two way, either embedded and surface mounted, for the light is design for universal installation.