Most new 4x4s come factory-equipped with replaceable-bulb headlamps that feature a halogen bulb that simply mounts into the headlamp housing. The main benefit of this system is that when the bulb ...

Ready-made wiring harness and relay kit makes it easy to add relays to a motorcycle headlight. Adding a relay can improve headlight output, reduce load on switches and allow higher wattage bulbs to be ...

Maximizing your custom rig’s forward lighting capability with retro-style headlights fitted with high-output bulbs can be something of a win-win. The brighter beams enhance safety, allowing you more ...

Our test of 10 H4 halogen bulbs reveals that the high-beam reach of the worst bulb is 60 metres shorter than the best bulb tested. Worryingly, half of the bulbs didn’t meet the minimum required ...