4" round light with 10 LEDs. Hermetic lens-to-housing seal. Potted for total circuitboard protection. Lens design spreads lights for maximum dispersion. 12 volt. Round three-prong plug, male pin. Stop, tail, turn function. Stainless steel theft-resistant flange. Advanced Pin Connection System uses tin-plated, solid brass pin terminals. Light measures 4-5/16" diameter, 3/4" thick. Flange measures 5-9/16" diameter, 25/32" thick. Three mounting holes on 4-15/16" B.C. for #10 screws.