Features Bulbs Decoder: The applicable voltage is 9V‑16V, and the LED decoder is suitable for H4 plug type, useful and reliable. Practical Use: Eliminates the interference of headlight on the trip computer and prevent light bulbs from flickering. 2Pcs in 1 Set: Comes with 2pcs bulb canbus, the changing and replacement are very easy, which work with great stability. Sturdy Shell: Equipped with heavy duty alloy shell, has durability with heat, and very sturdy against impact as well. Simple Using: Just plug and play, and no need for extra wiring, adding more convenience and flexibility to operation. Specification: Item Type: LED Canbus Material: Alloy Application: For H4 LED light. Adaptation Voltage: 9V-16V universal. Plug Type: H4 Package List:2 x LED Canbus Note:Please fix it in a position that is durable with high temperature and conducive to heat dissipation, and do not install it inside the light assembly. Package List 2 x LED Canbus