Amazon: AUXITO 194 LED Light Bulb, Amber Yellow 168 2825 W5W T10 Wedge 24-SMD 3014 Chipsets LED Replacement Bulbs for Car Dome Map License Plate Lights (Pack of 10)
I bought my headlight and tail light bulbs as part of a replacement kit which came with new housings. But you can just search the bulb number for them on Amazon and add into the search LED and you’ll find 100 of them.
Amber yellow. Type in “auxito 194 amber yellow 168” into Amazon. These are even better than the ones I got in the video. The mounting style is much more durable than the type that just have a single strand of wire on each side to hold it in place.