Inconvenient Lesson About LED's

[BigJon3475]

Originally Posted by southernnaturelover

I wish they made more of them that are 3500K, which is more like a halogen bulb. I can't stand those 5000K "daylight" bulbs, they are too blue and unnatural looking.

There’s not much of a difference between 4000k and 3500k. You can find LEDs in 3500k but it’s not common and the price has been going up on them from everything I can tell. 4000k is white light similar to what you would see in institutions. It’s great for work environments and places where being aware is a good thing. I mostly use 4000k bulbs around the home. I do have one 2200k led beside the bed for night time to help relax. There’s many an article in the physics and health worlds showing that whiter light is bad for your circadian rhythm. If you have an iPhone you might have seen the “night shift” feature that helps you to relax and fall to sleep easier.

[BigJon3475]

Originally Posted by oregonwoodsmoke

After three hours the 100 watt equivalent bulbs had heated up the glass shades by perhaps 1/2 a degree. Or maybe they were vaguely warmer because it is warmer up by the ceiling. The lower wattage LED's had shades room temperature, but they are noticeably lower in the room.

Unscientific conclusion: if the 100 watt equivalent bulbs are heating up, it's not by much. I would not be expecting them to burst into flames and set the ceiling on fire.

15 Watts is equal to 51.2 btu or about .85/btu/minute. 1 btu is about the equivalent of one “blue tip” kit he match. Not really sure what a kitchen match is but it at least gives you an idea of how much heat a third of a watt is.