Red 56cm 48 SMD Knight Rider LED Light Lamp Strip Waterproof Waterproofing, shockproof, corrosion preventing&lt;br&gt; Working voltage: 12VDC&lt;br&gt; Size:56cm x 1.4cm(L*W)&lt;br&gt; Led Light strip color: Red Red wire = 12V battery&lt;br&gt; Black wire = negative ground (-)&lt;br&gt; Led knight rider lights installs in the net position of automobile Wireless remote control&lt;br&gt; Button D for power switch&lt;br&gt; Button A for accelerating pattern-changing effort Button C for different pattern, you can choose some kinds circulatoryway&lt;br&gt; Button B for slowdown pattern-changing effort Package included :&lt;br&gt; 1 x Red 56cm Flash Knight Rider Lights 48 LEDs Car Led Strip&lt;br&gt; 1 X Receiver&lt;br&gt; 1 X Remote controller