SE-HB relay is mainly used in motorcycle flasher, which knocks on the shell through the action of attracting and releasing the relay, forming the prompt sound "DI" and "DA" when the motorcycle turns. The maximum switching current can reach 5 amps, and the voltage is reduced to 200 millivolts, which greatly reduces the heat loss during high current conduction and effectively avoids the contact aging problem caused by overheating. In addition, the relay can withstand the rigorous test of 1× 10⁵ electrical cycles and 1× 10⁷ mechanical cycles, so it can maintain stable performance even in the high-frequency start-stop environment, effectively reducing contact wear and conductive failures. What's more worth mentioning is that its temperature adaptation range is extremely wide, and it can work normally between -40℃ and +125℃, far exceeding the temperature limit of traditional relays, making the motorcycle flasher work normally in both severe cold and hot summer.