Operates 9-16 Volt DC Systems. Rated @ 100,000 hours of service life. Shock and vibration proof. No corrosion. Sealed marker lights. Impact resistant polycarbonate housing. Energy draw 150 Milliamps. Interchangeability with most manufacturers. 8.5" mounting centers. Required for trailers, campers and trucks over 80" in overall width. Size 13.56" L x 1.63" W x .75" D. 3 LED Configuration.