ITEM NAME:Car H4 LED Headlight Lamp Canbus Decoder Anti-Flicker Load Resistor Description: - Easy Pre-wired, Plug & Play Installation, Do Not Need Modification of Stock Wires. - Base for turn signal bulb or LED License Plate Lights to avoid hyper flashing, no flashing or burnt out bulb indications. - Used for Headlight Bulb. - Load Resistors heat up like light bulbs and get really HOT when working. Mount them on metal surface, NOT plastic. So don't touch by hand directly. Specification: - Material: Plastic and Metal - Length: Approx 315mm - Voltage: 12V Package Included: 1 Piece LED Light Canceller Decoder Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making.1 Piece LED Light Canceller Decoder. - Used for Headlight Bulb. - Load Resistors heat up like light bulbs and get really HOT when working. So don't touch by hand directly.