... use, can be done red, blue ,white and others. 2. The appearance of fine workmanship, waterproof, anti-vibration, shell color can be made ... your request. 3. Simple installation , with magnet in the position of installation, and the base has three screws, can be fixed with screws ... LED can be made into two ways: one is the internal LED of partly rotation, another is partly fixed alternating LED flashing ...