Function - These load resistors prevent warning codes, bulb failure indications and flashing when you install standard bulbs in a car, bike or truck. They simulate the electrical load of a bulb to keep the system stable. How it works and compatibility - When replacing the original halogen bulb (5W) with a lamp that is 1 to 3W, the vehicle computer may detect a power mismatch and either not illuminate the lamp or cause flickering. - The load resistors provide the correct load to allow normal operation of the lamp. - If flashing or warning indicators persist, a decoder should be installed to clear the warning or flashing. Key attributes - Function: prevents CAN bus or system warning errors and bulb flicker after bulb swaps. - Compatibility: suitable for car, motorcycle (bike) and truck electrical systems. - Size and installation: designed for compact integration with standard bulb sockets (easy to install in tight spaces). - Performance: offers stable load simulation to support reliable light output. Use scenarios - Replacing a halogen headlight with a lower wattage lamp (1–3W) in a car to reduce power draw without triggering warnings. - Swapping dashboard or indicator bulbs on a bike or truck to a lower wattage lamp while avoiding flicker and warning codes. - Any situation where the vehicle detects a wattage mismatch between the original bulb and the installed lamp; if warnings or flashing occur, install a decoder to clear the indicator.