Features: Made of quality materials to improve reliability and durability. The module board optimizes the combustion efficiency of the water heater by monitoring and controlling the combustion process The water heater control board should have a fast ignition function, good contact, the ability to quickly start the combustion system when the user needs hot water, to achieve rapid heating and supply of hot water Plug and Play: Easy to install, it can be directly replaced with old or damaged board. If your auto ignition board malfunctions, it is advisable to promptly seek repairs or replacement to prevent situations where temperature control is inaccurate or hot water supply is stopped This is a non-OEM product, accessory ONLY! Specification: Color: Black, Blue Material: Plastic, Metal Size: 10x6x4cm / 3.94"x2.36"x1.57"(L*W*H) Package Includes:1 x Water Heater Ignition Control Circuit Boards