Embodiments of the present invention can provide an accessory control system, a light control system, and/or a brake light control system for golf carts and/or other vehicles, including trailers, motorized vehicles, and non-motorized vehicles. Embodiments relate to a control system that can be easily installed on a golf cart and/or other vehicles. Specific embodiments relate to a light system that has few is any wires connecting the light system to, or interfering with, any existing electrical circuitry of the gold cart. Specific embodiments can be installed on any golf cart, such as in the same location(s) as prior light systems. Embodiments of the subject light system can be rear tail lights, rear braking lights, front running lights, and/or front headlights.