ACE SCALE POLICE LIGHT BAR RED/BLUE FRONT BLUE/RED REAR 9 FLASH PATTERNS 12 VOLT1/10 Scale Roof mount Police Light Bar with slip connectors Includes: Light bar Wire harness w/power switch and 2 Momentary switches Black Wire shrink For Use With: 1/10 scale R.C. Specifications:You can run the light bar with the supplied 9 volt battery, or you can connect it directly to the battery in your R.C. vehicle. The dimensions of the bar are 4.5"x1"x1/4" The light bar can handle up to 12 volt D.C. but no lower than 3 volts.