compact courtesy light has stable performance for applications in vehicle, boat, yacht, ship, marine and decorating 316 stainless steel housing is resistant to UV. The light will has a long lifespan even in extreme consumes just a bit of current draw to emit beautiful red light. Several lights together present nice visual , dustproof and shockproof. Circuit board completely sealed. Low maintenance and surface mount installation. Mounting screws are included. Wiring: black wire for positive and white wire for negative/ground.