Our R4 Series are a versatile product line of 4” Round LED lamps including this LD Series Front/Park/Turn lamp. Our new LD Series are lamps that have been designed with a lower diode count to offer a budget friendly solution for affordable LED lighting. Versatile in design because they are equipped with three wires which allow you three functions in one lamp; use as a Rear Turn or Front/Park lamp, Auxiliary Side Marker or as a Directional Signal lamp. For a truly watertight lamp consider our “one piece housing” style (ECRV44xTx) that will eliminate water damage and rot. If water seeps behind the light it is safely held in the waterproof mounting flange and will not drain into vehicle. These lights are popular in DOT/Construction vehicles, Commercial Vehicle Trailers, Transit Buses, Shuttle Buses and School Buses. Lamps meet or exceed SAE 108, J1395, J585, DOT, FMVSS 108 and CMVSS requirements. We also offer 4” Round Premium Stop/Tail/Turns, Rear Turns, and Backup Lamps for your every need and application.