iDlumina 7440 7441 7442 992 W21W W3X16D 12V Yellow LED Car Light Bulb 21X5730SMD for Turn Signal Brake Parking Tail Light (Pack of 2) 14 months warranty on item(s) that confirm to be manufacturer defect. Fit: 7440 7441 7442 992 Application: turn signal light, tail light, backup reverse light. Performance: Yellow color. Voltage 12V DC and AC. 21 pieces of qualified 5730SMD (Max Capacity at 50LM/SMD5730) per bulb. Cooling system with airflow and aluminum design. IC control driving, circuit protection with non-polarity. Installation: Really plug and play. No need to distinguish electrode between positive and negetive. Noted that this is the standard socket, not CK type.