LED 100W A19 8-Pack Ultra Definition (2700K) 1500 Lumen (11.5W = 100W) Dimmable Frosted Flicker-Free Light Bulbs

These are just the best. They’re a 1500-lumen bulb, and they come in A19 instead of the larger A21 size that basically no longer needs to exist now that we’re not using burning filaments to make light anymore, so they fit pretty much anywhere that expects a medium-base Edison-style bulb. The color rendering is superb, up there with the best bulbs out there. They even *look* nice, with their glass rather than plastic shell; a lot classier than the typical design if your bulb is going to be exposed. The killer feature, though? Dimming. First, these are the most cooperative dimming LEDs I have ever encountered. They will happily go from max brightness to “so dim you forgot it was on” (Much lower than 1%) without any trouble at all, no flicker, no nothing. Short of an actual incandescent, this is the most natural, trouble-free dimming I’ve seen in a lightbulb so far. Even better, though? *The color temperature gets warmer as they dim.* You know how with incandescents and halogens, as you turn them down the light they give gets warmer and more orange in a really pleasing and natural-feeling way because the filament isn’t so hot? And you know how LED bulbs just… don’t, because the blue LED driving the white light always produces the same wavelength of light regardless? Well, these bulbs aren’t like that. They run two sets of LEDs, one with a cooler color temp than the other, and they blend the light to make a nice 2700k, 95CRI “warm white” temperature. But as they dim, the cooler set of LEDs dims first—so the overall light coming out of the bulb becomes warmer and more candle-like. The effect isn’t nearly so pronounced as it is with an incandescent or halogen bulb, but it’s there, it’s noticeable, and it’s nice. These aren’t smart bulbs. They have zero “settings.” They aren’t configurable, they don’t communicate with anything, there’s no “dimming program” or “color temperature option” here. They just work like a normal, old-school, incandescent bulb—still the gold standard as well as light quality and predictable behavior—only they do it while consuming 1/10 as much electricity, and they’ll do it for years and years and years without burning out. These will likely even outlast most of the lamps they get installed in, and certainly most lamps with built-in LEDs. LEDs themselves will generally last decades, but the lifespan of the *electronics that power them* is a matter of how much the manufacturer of the product cared about quality vs. price. A lot of cheap, commodity lighting that you get on Amazon and elsewhere has a good chance of just dying sometime within the first few years, in a way that is basically unfixable. These are a flagship-grade Philips product though, and based on how well they handle dimming, I feel like someone put actual effort into the driver design; which would have had to be a custom one rather than OTS anyway, since I doubt there are many OTS driver units that do WarmGlow. Phillips has the expertise to do that, unlike a lot of no-name brands that are just putting together a design, finding a factory that says “yeah, we can make that” and then shipping with whatever compatible components happened to be cheapest and most available at that time. So, anyway, these are quality. I like them. If you aren’t interested in smart lighting, and just want bulbs that work like “normal” old incandescents only without the drawbacks (power consumption, dangerous amounts of heat, short lifespan) then these are going to have you breathing a sigh of relief.

The old light bulbs are really cheap here. They are soft white color when they are on. They don't flicker when I use them in the living room and at my work desk too. They are really bright 100 watts of lighting brightness illuminated power for the house. These light bulbs last 6 months long when useful at home. It has no noise when the light bulbs are on at home. They work really great when lit because it's really good lit all of the time at home too.

Always a great product. Easy to set up. Easy to use.

These are indeed the best led A19 bulbs around. I bought them a couple years ago based on a YouTube comparison review (whoever did it-thanks!). I get the impression though that they are getting hard to find. Buy them when found.

These bulbs look great at first but then quickly become dull/yellowed, flicker between normal and yellowed, or completely fail. Quickest fail time was about three weeks, mode is about 2 months. I’ve been monitoring these bulbs since May 2025 (it’s now late Oct). So far 9 of the 12 I purchased have failed. They were from two separate packs. Perhaps it’s only an issue with a bad lot. But I do not want to purchase more to test. The first bulb lasted just 3 weeks. Thought was a single defect. The others have lasted past the return period. When they go yellow I just move them to non “important“ areas of the home.

Absolutely beautiful light! Much more Amber than other LED bulbs

Excellent. Enjoy being able to control them with Alexa and they are very obedient.

I run these bulbs everywhere I can indoors. The warmth and light quality seem good for the price. I still like Hue White Ambiance to be able to specify color temperatures. But for other permanent fixtures, especially those on dimmers, these are my go to.

Tengo que empezar diciendo que mi motivación para comprar estos focos Philips Ultra Definition no fue la típica. Sinceramente, el hecho de que sean LEDs y que ahorren energía o dinero en la factura eléctrica es algo que me tiene sin cuidado; es un plus que agradezco, claro, pero para mí es secundario. Yo buscaba calidad de luz pura, y eso es exactamente lo que encontré aquí. Desde que los sacas de la caja, notas que la construcción es superior. No se sienten como esos focos de plástico barato y hueco que inundan el mercado; tienen un peso y un acabado que denota que están bien hechos, lo cual ya te predispone a una buena experiencia. Pero la verdadera magia ocurre al encenderlos. La luz que desprenden es simplemente hermosa. Tienen esa tonalidad cálida (Soft White 2700K) que baña las habitaciones con una sensación increíblemente cozy, tibia y acogedora. Es como si la atmósfera de la casa cambiara instantáneamente a un modo de relajación absoluta. He decidido ponerlos en absolutamente todos los rincones de mi casa, y aquí es donde difiero fuertemente de la opinión popular. Muchos expertos dicen que para las oficinas o zonas de trabajo se necesita luz blanca o fría para la concentración. Yo no podría estar más en desacuerdo. Personalmente, detesto la luz blanca clínica; me hace sentir en un hospital o en un ambiente estéril. Tener esta iluminación cálida en mi oficina me permite trabajar tranquilo, sin estrés visual y en un ambiente mucho más humano y agradable. Un punto crucial para mí ha sido el confort visual. He leído en varias reseñas y análisis técnicos que estos focos en particular emiten un nivel de luz azul (blue light) significativamente menor que los LEDs convencionales, y debo decir que en la práctica se nota. Con otros focos, al llegar la noche, sentía la vista cansada o me costaba desconectar para ir a dormir. Con estos, no tengo ningún problema; la transición hacia el sueño es mucho más natural. No sé si atribuirlo con total certeza científica al hecho de que son flicker-free (sin parpadeo), pero la realidad es que siento una diferencia palpable. Esa fatiga sutil o dolor de cabeza leve que a veces dan los focos baratos aquí no existe. Mis ojos se sienten descansados. En resumen, si eres como yo y buscas convertir tu casa, incluyendo tu oficina, en un refugio cálido, y valoras el confort de tus ojos por encima del simple ahorro energético, estos son los mejores focos que puedes comprar. Yo genuinamente los recomiendo, si estás pensando en comprarlos de verdad pienso que te van a gustar.