cciyu 4 Pack T4/T4.2 Neo Wedge Halogen Bulb Replacement fit for A/C Climate Heater Control Light Lamp 12V Diameter: 10mm Base diameter Flat Top Bulb.LED Type: T4T4.2 Neo Wedge Halogen Light Bulbs. Compatible socket bulb number: T4, 79674-S3N-941, 79607-SHJ-S01, 36773-SEP-A01, 36774-SEP-A01. Low Power Consumption and Low Temperature. Long-lasting Life - 50000 working hours Application: for replacing Climate Control, HVAC control light bulbs. Please NOTE: If the LED does not light up, simply Rotating it 180 degrees (reverse the polarity)