the MACH headlights are DESIGNED to have both lamps on for hi-beams.....
thats why there is a shuter in the projector HID portion....it lifts out of the way and keeps the HID portion lit, and the second bulb turns on....which in turn is your highbeams...if you've been running only the inside bulb for your highbeams you are NUTZO!!!
thats why there is a shuter in the projector HID portion....it lifts out of the way and keeps the HID portion lit, and the second bulb turns on....which in turn is your highbeams...if you've been running only the inside bulb for your highbeams you are NUTZO!!!