Efficient Ignition: String trimmer ignition coil module provides a strong and stable spark, and works with the engine's ignition timing system to ensure the spark plug is activated at the right moment for the quick start and stable operation of the mower. Voltage Boost: Ignition coil module can convert the low-voltage current in the power supply of the mower into a high-voltage current, ensuring that the spark plug can generate enough energy to ignite the fuel mixture, promote efficient combustion, and improve the efficiency of the mower. Reliable Performance: Ignition wires adopt high-quality metal materials and advanced manufacturing processes, offering high strength, stable structure, wear resistance, corrosion resistance, high temperature resistance, and stable performance that can adapt to various working conditions. Compatible Models: String trimmer ignition coil module fits 129C 129L 129LK 129RJ lawn mowers; fits Jonsered BC2228 GT2228 GTS2228 lawn mowers; replaces 597383401 579525402. Please confirm your trimmer model before purchasing. Easy to Install: Lawn mower ignition coil module can be replaced directly, plug and play, so that you can easily perform lawn mowing work, giving you a beautiful and neat lawn. Please be careful to let the mower completely turn off before installation. Colour: Black. Material: Plastic. Package Contents: 1x Lawn Mower Ignition Wires. Only the above package content is included. Other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allows an error of +/- 1-3cm.