Note: As the safety of the transportation , the goods will comes without battery . Specificationis_customized: YesCertification: CCC,CE,FCC,RoHSRemote Distance: 2-5mVoltage: DC12VMaterial: PlasticHow to use: 1. Connect the load wire at first, following by the power wire; Please ensure short circuit can not occur between connecting wire before you turn on the power.2. Operation, you will receive infrared remote control in front of infrared receiver to ensure that there is no barrier between the remote control and receiving head.Warm