I've so far had good success with the ones Yuji sells; they are conceptually like buying a PC directly from Intel: Yuji makes LEDs (I'm not aware of them fabbing the semiconductor wafers in-house, nor synthesizing the phosphors in-house, but they develop them) that pride themselves in optical quality (using double and triple phosphor systems for CRI 95+ and CRI 98+, respectively) to justify their ~1$/W (electrical) price tag for strips of the lower grade (about double for the higher grade).
My main ceiling light is a now-discontinued remote phosphor 10W bulb, where the LED chip is covered by a loose plastic dome that is infused with the phosphor.
The scattering gives a really wide and even light cone to partially illuminate the ceiling for extra diffusion.
IIRC it was rated 20k hours probably due to the PSU, though I operate it uncontained for best (passive) cooling (and because I don't look at the socket it's hanging from anyways, lest I get an afterimage of the dome on my retina from staring at the lamp, so the non-fancy fixture doesn't bother me).
The PSU I got for some ultra-warn-white (iirc 1900K) strip (5m of 20W/m 24V PWM-able) from them (a knob on it does PWM dimming (iirc) just past the audible range)) was like 80 or 90 bucks, on top of the iirc ~110 bucks for the strip itself.
Given they don't seem to sell in normal retail stores, I'm not worried about brand inflation/"paying for the name", given their marketing is focused on spectrum measurements and color performance with the listed prices being "affordable" (1$/W @ 20ct/kWh means it costs as much to buy as the next 5000 hours of runtime will cost in electricity; I take "twice as much total operating cost than with literally free/gifted bulbs" as "affordable").
My main ceiling light is a now-discontinued remote phosphor 10W bulb, where the LED chip is covered by a loose plastic dome that is infused with the phosphor. The scattering gives a really wide and even light cone to partially illuminate the ceiling for extra diffusion. IIRC it was rated 20k hours probably due to the PSU, though I operate it uncontained for best (passive) cooling (and because I don't look at the socket it's hanging from anyways, lest I get an afterimage of the dome on my retina from staring at the lamp, so the non-fancy fixture doesn't bother me).
The PSU I got for some ultra-warn-white (iirc 1900K) strip (5m of 20W/m 24V PWM-able) from them (a knob on it does PWM dimming (iirc) just past the audible range)) was like 80 or 90 bucks, on top of the iirc ~110 bucks for the strip itself.
Given they don't seem to sell in normal retail stores, I'm not worried about brand inflation/"paying for the name", given their marketing is focused on spectrum measurements and color performance with the listed prices being "affordable" (1$/W @ 20ct/kWh means it costs as much to buy as the next 5000 hours of runtime will cost in electricity; I take "twice as much total operating cost than with literally free/gifted bulbs" as "affordable").