Review on 🚗 SIRIUSLED 578 Festoon Light Bulb: Ultra-Bright 400 Lumens Canbus Error Free LED for Cars & Trunks - 6000K by Paul Newton

My God, what bright things. It will easily illuminate the entire cabin with bright white daylight. A word of caution, these bulbs get pretty hot even with the heatsink substrate on. I would make sure you don't use these bulbs continuously for more than 2-4 minutes (courtesy and light map). I've seen a few photos where they've been used for permanent license plate use, bad bad idea. Just because it fits doesn't mean you put it there. This not only destroys the lamp body, but also may catch fire due to the high temperature. I have a 2002 Tahoe where I only use them internally in 2 places and on the outside rearview mirrors. They only come on when I close and open the doors and when someone gets in and out. Remember that LEDs glow brighter when properly cooled, but heat accelerates deterioration and can catch fire.