This Is A Great Item To Carry With You On Long Road Trips. In Case Of A Breakdown Or An Accident, You Can Warn Other Motorists Of Potential Danger In The Road. This Light Gives You A Choice Of Any One Of The Three Colors To Use At One Time. Blue, Red, Or Amber (for Off Road Use Only). The Base Has A Strong Magnet, To Hold To The Roof Of The Vehicle, And It Is Powered By Plugging Into Your Vehicle's Accessory Outlet.

* These Lights Are Not Intended For Use On A Moving Vehicle-Choice of red, blue or amber

* Large Dome Light, Approx 5.5" Tall, Easy To See From A Distance

* 8 Feet of coiled power cord-enough to reach to the roof of the vehicle

* Never needs batteries-powered by the auxiliary outlet in your vehicle

Handy for road trips- warns other motorist of hazards and dangerous situations in the road