The colour changing MR16 lu3 is an ideal mood light, it can be used in all types of applications. The Lu3 MR16 down lighter mixes colour using primary R/G/B led technology, it is controlled by processors onboard the Lud/48 driver module.. The Lud/48 driver mixes the primary colours within the Lu3 to create virtually any colour. Up to 12 fittings can be run from one driver module. The Lu3 fits a standard 50 mm down lighter, it comes complete with a chrome mounting ring. The Lu3 is available with an optical 25-degree lens and a frost filter.