SAWE - Extremely Bright EX Chipsets 1.25 inches 4014 31mm 10-SMD DE3175 DE3021 DE3022 3175 LED Bulbs (2 pieces) (White) Package Included: 2 x Extremely Bright EX Chipsets 1.25 inches 4014 31mm 10-SMD DE3175 DE3021 DE3022 3175 Festoon LED Bulbs (White) Cross Reference: 3021 3022 3175 6428 6430 DE3175 DE3021 DE3023 7065 etc. Only for DC 12V vehicles Commo use for Interior Light, Dome light, Map light, Door light, Cargo/Trunk light, Glove Box light, License Plate light etc Notice: All LED bulbs have to be plugged in a certain way, it has Positive and Negative. Simply flip it 180 degrees if the LED does not light up.(Reverse the polarity) Common use for RV, Car, Truck, Motorcycle, Boat, Trailer.Placement on Vehicle: Left, Right, Front, Rear