I attempted to use LED light bulbs in the kitchen light, but as usual, I was unable to as the bulbs gave me a headache.
The bulbs tested were the Philips Warm Glow 100w equivalent A19 bulbs with 'Flicker-Free EyeComfort Technology'. From what I can gather, these bulbs are highly regarded among those who like lighting. The Warm Glow is quite an interesting feature and does very closely match the color of an incandescent bulb.
While there did not appear to be any noticeable visible flicker, there was some banding noticeable on the camera when at full brightness, which proves that there is some kind of flicker. I felt the bulbs were very harsh on the eyes, but can't quite pinpoint why as they seem to be almost indistinguishable from an incandescent bulb. Despite not being able to visibly see the flicker, my eyes are still able to detect it, or some other aspect of the bulbs, that results in a headache after prolonged exposure.
I really wanted these to work because they looked just about as good as incandescent and provided a great range of brightness to suit difference scenarios in the kitchen. I gave them a fair chance, but as I often find with LED, I was not able to use it.
The halogen bulbs I initially tested with the fixture didn't seem to like this particular dimmer and would emit a very high frequency sound when dimmed. I've successfully dimmed these bulbs in many other applications, including in the living room, without a notable amount of noise. This dimmer is rated for use with LED bulbs, but it also claims compatibility with incandescent. I tend to think it's the switch, but I can't say for certain.
The next thing I tried, which worked perfectly, was a plain old incandescent bulb. The 40-watt bulbs I found at the local grocery store, rated for ceiling fan use, work very nicely here. The filament in these, and the 'appliance', bulbs, is sturdier and secured by multiple studs inside the bulb. I'm not sure if this is responsible for the lack of the high frequency noise, or if it's the filament itself.
The quality of light from these bulbs is top notch. No flicker, no noise, excellent color rendering, and most importantly, no headaches. A total of 3 in the fixture gives 120 watts of power at full brightness, which is satisfactory, but definitely not as good as before. These bulbs are still available for purchase and will likely continue to be for many years to come.
I have a few other light bulbs on hand that I may try in this fixture, such as the Decade Bulb, but I am satisfied with these bulbs for now.
Негізгі бет Ғылым және технология From LED to Incandescent
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