H9 and H11 LED bulbs

H9 H11 LED bulbs
H9 and H11 LED bulbs are bulbs based on the halogen H9 / H11 design. This means the base etc. are based on the H11 fitment, but the light source is LED instead of halogen. A big advantage is the increase of light output, a disadvantage is usually more stray light, which can be blinding for oncoming traffic.

Also the light or color temperature is higher, which means a more white light.

Installation
Installation is usually quite easy because the base of H9/H11 LED bulbs is based on H9/H11 halogen bulbs. To prevent canbus messages / errors sometimes it is needed to have canbus cancellers.

Use on public roads
Because the H9/H11 standard is originally designed for halogen, most H9/H11 LED bulbs are not approved for the public road.