Specification : Product size: 2.5M Wire Gauge: 16 AWG Working Voltage: 12V DC Max Wattage: 240W Mouse style switch, DC12V 40A rated automotive relay, blade fuse holder with replaceable 30A fuse Fitment : Off-road driving light, fog light, work light, etc Features : Power relays with 40A inline blade fuse efficiently protect the circuit when overcurrent or short circuit occurs. 2 sets of light output connectors for dual lighting fixtures less than 240W, more stable connection. Suitable for all automobiles, boats and devices that use a 12V power source. On/Off switch (3/4" hole required). Easy to connect, the installation can be finished in a few minutes. 10 feet of wiring Package Included: 1x wiring loom harness kit with fuse and relay Note: Please finish the installation by professionals or install the wiring harness under the guidance of professionals.