True SSC P4 Z-LED Emitter - SSC MPU/Model # W42180-U (color bin: SW0 - pure white) - 3.7V typical driving voltage (see specs section for more info) - "Star" connection board for easy wiring and upgrading existing star Luxeon emitters . Note: we've been recently made aware by fellow customers from CPF that some of these stars are installed with wrong polarity indications causing the emitters to get damaged even when wires are "correctly" installed. We apology for this issue. If you have a non-working star damaged in this way let us know and we will work with you on a remedy.