GMS-852:White COB light output 250 lumen,detection range 3 meters.Can be used as a constant light by setting to “on” position,operate as a sensor light(operates in dark) by switching to “Auto” mode.Includes two magnets and 2pcs metal with adhesive tape.Working by 4 AA batteries(not included).GMS-854BWarm COB light output 70 lumen,detection range 3 meters.Can be used as a constant light by setting to “on” position,operate as a sensor light(operates in dark) by switching to “Auto” mode.Includes mounting bracket,fixings and working by 3 AAA batteries(not included).