3 ms·
And not only CRI, but the absence of flicker ... which is surprisingly common even in LED bulbs.
by clumsysmurf 4y ago
And not only CRI, but the absence of flicker ... which is surprisingly common even in LED bulbs.
- pflanze 4y agoAgreeing on the flicker. I don't think it's surprising that it's so common, though--undimmed lights are cheapest to power by not making proper DC out of the AC coming from the socket, and dimmed lights are cheapest to dim by slow PWM (pulsing ~100 times per second) without including inductors to flatten the pulses.
- was_a_dev 4y agoIs there a way to tell if an LED bulb doesn't flicker
- layer8 4y agoSlow-motion video recording.
- pflanze 4y agoIt's also easy to see when you move your hands quickly back and forth in front of a dark background with fingers spread apart, instead of the fingers being blurred you'll see their image repeated distinctly many times (like a fan).
- was_a_dev 4y agoTechnically yes, but unfortunately that means purchasing the bulb beforehand
- pflanze 4y agoI don't know of a way around that (short of maybe finding reviews).
- smcleod 4y agoYeah good point, I've noticed in some cheap office LED rollouts.