These lights are ideal for boat and PWC trailers and meet FMVSS/CMVSS 108 requirements for trailers over 80" wide when properly mounted. Stud mounted using 2" O.C. industry standard stud comfiguration.
Convenient, spring-loaded, plunger-pin swivel feature - Swing up to stow parallel to the tongue for travel; move back into an upright position for use.