... : 7.5A-40A 2.Sound, light alarm while fusing. Tractor fuse boxModel: WDL-DQH-7124Features:1.Operatin voltage: 10.5-15V ... ,engine preheating,horn, saftey start and electronic regulator;fuses for ammeter, electric regulator, front light, rear working light, flasher, horn, ... , light alarm while fusing.4. Electric principle diagram available. Tractor fuse box