cciyu T5/T4.7 Neo Wedge LED Heater HVAC Climate Control Light Bulbs Replacement fit for 2001-2012 Dodge Ram 5500 4500 3500 Van 3500 2500 1500, 10 Pack Green Surface Finish: bright Red T5 T1.25" Neo Wedge Base. Compatible socket bulb number:T5 - 79607-SHJ-S01. Compatibility: 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Dodge Ram 1500 Van Intrepid Dakota Caravan Grand Caravan Ram 5500 Ram 4500 Ram 3500 Van Ram 3500 Ram 2500 Van Ram 2500 Ram 1500 Van Ram 1500 Cross Reference: 8mm Base diameter T3 Neo Wedge Instrument Panel and Gauges LED T3 - 39397-SA5-003 10mm Base diameter T4.2 Neo Wedge Instrument Panel and Gauges LED T4 - 79674-S3N-941 12mm Base diameter T4.7 Neo Wedge Instrument Panel and Gauges LED T5 - 79607-SHJ-S01 Application: Great repalce for A/C Lights, Climate Control light,Shifter light & Radio/Switch Lights etc Please NOTE: If the LED does not light up, simply Rotating it 180 degrees (reverse the polarity)