?no Flicker?NAKOBO 31mm Festoon Led Bulbs 6000K White Light 4-SMD 3030 Chipsets Canbus Error Free for 3175 DE3175 DE3021 3022 3021 Dome License Plate Door Lights Pack of 4 ?High Quality Super Bright Led Light: Pack of 4, each bulb uses 4x3030 super bright SMD chipsets. Built-in canbus driver to bypass error check for most cars. No Polarity, No Flickering. ?Fit Bulb Sizes: Size fit for 30-34MM, can replace DE3021 DE3022 DE3023 DE3175 3021 3022 3528 3175 6428 6430 7065 6614 6614F 6641 12818 12842 30922 F30-WHP TS-14V1CP bulbs etc. Please double check owner's manual or original bulb size or check with us if necessary. ?Widely Used: 31mm/1.2inch 6000K white light LED bulb,280 lumens,12V-23V DC, can be used as LED map Lights, LED dome Lights, LED license plate lights, LED Side Door Courtesy Lights, LED Cargo Lights, LED Trunk Lights etc. Easy to Install, just plug into the socket. ?Energy-saving:Made with aluminum body design for better heat dissipation, low temperature, low power consumption long-lasting life up to 50,000 hours?50 times longer than the original incandescent bulbs.