Partsam 6000K White High Power Backup Reverse Led Bulb 921 T10 912 for DODGE Ram Pickup 2007 2008 2009 2010(Pack of 2 Pieces) Voltage & Lumen: 12V 300Lumen Interchange Number: 921 194 T10 W5W 168 184 192 147 152 158 159 161 Application Position: 42-3528-SMD Backup Reverse Lights Low power consumption and high lighting If it does not light, please try with flipping 180 degrees to reverse the polarity