Each 566 (P21/4W) BAZ15d bayonet base LED light bulb equips with 18 high power 3-chip 5050 SMD LED; ~5W, ~500 lumens.This LED Light works properly on >80% latest/European cars with OBC CAN Bus wiring system (will not show error message); if not, you may need a Load Resistor installed in the circuit.Cross Reference for this LED bayonet base light bulb: 566 (P21/4W) BAZ15d 1122 7225 12594 621652 637227
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