Brightness. HID headlights are the brightest on the market, and the light they emit covers a larger area than halogen and LED bulbs. In fact, the area covered by HID headlights is nearly an entire third larger than the area covered by LED headlights. HIDs are also more effective at lighting up the sides of the road.
How much does it cost to replace a Mazda headlight?
Mazda 3 Headlight Bulb Replacement Cost Estimate. Labor costs are estimated between $26 and $33 while parts are priced between $244 and $245. This range is based on the number and age of Mazda 3's on the road.