Abstract: A multiple color multi-function light bar for a law enforcement vehicle, emergency vehicle, tow truck or the like. The light bar includes a plurality of light emitting diodes aligned in a single row. Each of the plurality of light emitting diodes are configured to emit two different colors of light through a single optical lens. Advantageously, the light bar is capable of producing a single color light pattern and a dual color light pattern based upon the particular emergency or traffic control situation encountered by an operator of the vehicle.

Abstract: An onboard lamp fixture for a vehicle includes a hollow conical body. The conical body is divided into a top portion having multiple flanges formed on an outer periphery of the top portion and multiple indentations each defined between two adjacent flanges, a middle portion having multiple intermittently formed threads on an outer periphery of the middle portion and annular gaps each defined between two adjacent threads and a bottom portion. After the conical body is extended through a through hole, a bottom face defining the annular gap of each thread is able to engage with an outer periphery defining the through hole and the flanges are able to securely engage with an inner periphery defining the through hole to secure the conical body.