cutequeen Car LED Holagen Bulb G4 Base Tower Type 12v Ac/dc 5050 5SMD 5-SMD Replacemnt for Rv Camper Trailer Boat Marine Lumen Warm White (pack of 2) Pin Pitch : 4mm/ 0.16";Body Size : 23 x 11mm/ 0.9" x 0.4"(L*W) Bulb Type: G4 Base,Color Temperature:White 6000K Working Voltage: 12V AC/DC LED:5050 5-SMD Notice:All LED bulbs have to be plugged in a certain way,it has Positive and negative, so if they don't work at first, quickly take them out, turn them around 180 degree, and put them back in again.