I used these in my fiance's Acura RL for the domes (doors) and front ceilings. 6 total. They fade in and out smoothly without flickering. (at least on this car). They are a beautiful lilac color. They are quite bright but I'm sure you could find even brighter ones as my rear 31mm LED bulbs are brighter in purple. The build quality looks pretty cheap (compared to other LEDs I have) but you still won't be looking at them under the covers. They work well and everything I've tried has worked. For this price I am very satisfied. I have 14 spares that will probably outlive this car and find it in the next life as wedge bulbs fit anywhere. =D BTW I put bright white LEDs in her visor lights so she still has a nice, useful white light when she really needs it for something. Purple looks cool but not ideal for reading etc.)
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