Dh hubby is in charge of upgrades to the trailer. He ordered 2. 1142 15w 12vdc cool for the 2 lamps in the front of the trailer . Our two couches are his and her beds. We got tired of smacking the lights to get the bulb to make good contact. You can sodder the base of the bulb,but this didn't seem to last a long time. I guess the fixtures have a right to be tired out after 21 yrs!! Anyway it was good to read old posts of those who had done the research/repairs and shared info.,experiences. Ordered from Super bright LED inc.