Review on Serundo Auto DE3175 LED Car Bulb 31mm 1.22in LED Festoon Bulb, DE3021 DE3022 DE3023 6428 6430 7065 LED Festoon Bulb, Interior LED Bulb for Car Map Dome Light, etc. - Pack of 4pcs in Amber Yellow by Adam Clemons

The bulbs easily fit the Hyundai Elantra 2012 interior map and ceiling lights. Pay special attention to the instructions. When inserting the lamp into the terminals, ensure that the terminals are properly seated on both lamp leads. If the light does not come on, remove the bulb and turn it over. The brightness is much brighter than a standard incandescent bulb. 400 lumens? Compared to a 400 lumen flashlight shining through the map light/shadow cover, my flashlight is much brighter than incandescent bulbs. I give it 280-300 lumens at best, but enough to fill the interior with enough white light to see what we're doing at night, compared to around 120 lumens incandescent bulbs.