Cutequeen White 31mm(1.25") 12-SMD 12V Festoon Dome Light LED Bulbs DE3175 DE3021 DE3022 3175(pack of 8) Size: 25mm x 31mm (0.98" x 1.25"),Type:3528 12-SMD,72 Lumen. Color: White (with 181 degree light output) Only for DC 12V vehicles The 1.25" (31mm) led light bulbs will fit 3021 3022 3175 6428 6430 DE3175 DE3021 DE3023 etc. 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.