> Yes, they absolutely do. Especially under-cabinet lighting - it's deliberately underdriven via voltage because the thin strips of aluminum are basically a bac

> Yes, they absolutely do. Especially under-cabinet lighting - it's deliberately underdriven via voltage because the thin strips of aluminum are basically a backing support strip and nothing more. Under cabinet lighting and more generic cosmetic lighting tends to use constant voltage for the input supply, but is regulating its current elsewhere, within the cabinet module or LED itself. This is literally how the most common example of RGB LED strips (WS2812s) work. They have current limiting circuitry within the LED module itself. Getting the most brightness isn’t the most important thing, unlike in actual bulbs. > Let's grab what under my cabinets, for example. 4 LEDs in series. Okay, assuming 3V that's a 12V chain - the included wall-wart power supply is a 10.5V output supply at 200mA. Nobody is driving a standard white LED at 2.6V for lighting. Please, show me a datasheet of a white LED that has a reasonable lumen output at 2.6V forward voltage drop. That also doesn’t include any voltage drop allowance in any wiring, boards, or any circuitry, which can be significant in low voltage applications. Especially when cabinet lights tend to be daisy chained together. I’d guess your cabinet lighting is actually driving a string of 3 white LEDs in series.