The best flicker-free LED bulbs

Mains electricity alternates, and an LED needs steady direct current. The driver inside every bulb does that conversion, and how well it smooths the result is what separates a steady bulb from one that pulses with the mains cycle. Cheap drivers pass more of the ripple through.

Most of that pulsing is too fast to see directly. People notice it three ways instead: as a faint shimmer at the edge of vision, as eye strain or headache after a long stretch under the light, or on camera - where it shows up as rolling bands, which is why video calls and phone footage are often the first clue.

Sensitivity varies enormously. Plenty of people never notice any of it. If you are one of the people who does, the useful thing to know is that the fix is often the dimmer rather than the bulb.

1. The maker says something about flicker. That sounds like a low bar. It excludes almost every bulb on a supermarket shelf.
2. High CRI as well. The people who care about flicker usually care about light quality generally, and every bulb here publishes CRI 90 or better.
3. Published output. Four of the five print a lumen figure. The one that does not is marked.
4. Honest about dimming. Two of these are dimmable and one is explicitly not, which matters because a dimmer is the most common source of the flicker people are trying to escape.

What none of them publish is a measured flicker percentage. We looked for one on every maker page in the sources below and did not find it, so the claim on this page is exactly what the makers claim and no more.

Philips Ultra Definition A19 - the pick. 800 lumens at 2700K with CRI 95, dimmable, and listed as flicker-free by Philips. It is the only bulb here that is a mainstream product at a mainstream price, which matters when the fix has to cover a whole house rather than one desk.
Cons: no measured flicker figure is published; CRI 95 is the headline and the R9 figure is not printed; and on an incompatible dimmer it can still flicker, because that flicker comes from the dimmer.

Philips Ultra Definition 100W A19 - the same thing, brighter. 1,500 lumens at CRI 95 for a room that needs real output from one socket, with the same flicker-free listing.
Cons: 1,500 lm in a bare fitting is a lot of glare; same missing measurement as above.

Waveform CENTRIC DAYLIGHT A19, 4000K - for a desk or a workspace. 800 lumens at 4000K with CRI 95+ and R9 80+, from a maker whose entire product line is built around spectrum and flicker rather than price.
Cons: not dimmable, so it must go on a plain switch; not enclosed-rated; and it costs several times a supermarket bulb.

Waveform Ultra High 95 CRI BR30 - for recessed cans. 800 lumens at 2700K or 3000K with CRI 95+ and R9 80+, dimmable. A ceiling of cans is the hardest place to fix flicker cheaply, because there are six of them.
Cons: the most expensive way to fill a ceiling; no measured flicker figure; and on an old dimmer the cans can still shimmer.

YUJILEDS CRI-MAX BR30 - the output option. 1,200 lumens at 3000K with CRI 95+ and R9 up to 95+, which is the best published color rendering on this page by a clear margin.
Cons: Yuji publishes no flicker claim at all, so it is here for spectrum rather than for flicker; dimmability is not published either.

Small loads on old dimmers. A dimmer built for 300 watts of filament bulbs is being asked to run 25 watts of LED. Below its minimum load it cannot regulate smoothly, and that shows up as flicker at the bottom of the range.

The wrong dimmer type. Leading-edge dimmers chop the waveform in a way many LED drivers handle badly. Trailing-edge is generally the better match - leading vs trailing edge explains which is which and how to tell what you have.

Mixed bulbs on one dimmer. Two brands on the same circuit can interact, and the fix is often as simple as making them all the same.

Loose connections. A flicker that comes and goes, or affects a whole circuit, is an electrical fault rather than a lighting problem. That one is an electrician, not a bulb.