H11 size is available for both HID and LED systems.
H11 size is a very common upgrading for Low beams as well as High beams and fog lights though not that often.
LED bulbs as well as HID bulbs come with 2-pin connectors to the factory wiring harness.
H11 bulbs are used to replace OEM H11 L-Shaped Halogen bulbs. If you are not sure about the right bulb size, you can look it up on the bulb itself or in the owner’s manual of your car. These products are designed to meet the requirements of those who want to have their car lights as bright as possible.