Find compatible headlight assemblies for your vehicle by visiting the websites of vehicle lighting system manufacturers such as Philips Auto Lighting, Sylvania Automotive Lighting and Signal Dynamics Corporation. Philips and Sylvania sell headlights for all kinds of vehicles, but Signal Dynamics specializes in motorcycle lighting systems only.
Philips' website has a lighting bulb look-up tool that allows a customer to specify the vehicle's year, make and model, and the search results offer a compatibility chart to help the customer choose a lighting product. Customers may order online or purchase headlight assemblies from local distributors. Sylvania's website has a similar tool, with information on where to buy and how to install headlights.
Signal Dynamics offers a plug-and play-compatibility chart from which customers choose the makes of their motorcycles, such as Honda, Harley Davidson, Yamaha, Ducati or BMW. If the customer cannot find his motorcycle from the chart or does not know the bulb type, he can send a photo of the bulb by email and Signal Dynamics provides assistance.
Electric headlamps produce high and low beams using either single multifunction lamps or dual-lamp systems for each beam type. High beams cast light straight ahead to maximize visible distance and are suitable when driving alone on the road. Low beams cast light downward for safe forward visibility minus excessive glare when other cars are on the road. Light sources come in several types such as tungsten, high-intensity discharge, LED and laser headlights.