Our 4 Chip RGB LED Modules are created from a lightweight ABS plastic injected molding with a PC (Perspective Control) lens to widen the beam angle to 160 degrees. Each module has four RGB 3in1 LED chips mounted to an internal circuit board with lead wires attached from each end. These modules can be cut or connected from either end of the wire leads. Each bundle of modules comes with a string of 20 pieces containing 3.56" of lead wire between each module. The wider beam angle creates more light dispersion in shallow light boxes and channel letters. These color changing lighting modules require at least 1.44W of 12VDC constant voltage power per module as well as a color controller to operate. To light all 20 pieces you would need a minimum of 28.8 watts of 12VDC power. No more than 20 modules should be powered in a serial connection, 40 modules can be powered in a looped circuit. Please use parallel connections for larger lighting runs. IP66 rating is totally dust tight with protection against direct high pressure water jets (non-submersible).