DIY & Home Improvement

NYC_SKP

(68,644 posts)

2. If you want efficiency, go with cool white.

Tue Oct 7, 2014, 10:21 AM

Oct 2014

I'm addicted to LEDs and have friends in the industry. I'm a geek.

I was even given a Saturday tour of the manufacturing facility where the epitaxy of chips and the testing occurs.

Cool thing to do: accidentally break a Phillips or other modern lamp (the technical term for bulb) and you'll find that the true color emitted is blue.

Phosphors in the lamp lens re-emit the light into the warm range, but the natural range is in the UV-blue range.

The photo below shows how you can pry off the amber part to reveal the LEDs.

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LED bulbs are coming down in price - do i want warm white or cool white, and why? [View all] hedgehog Oct 2014 OP

I want input on this also. northoftheborder Oct 2014 #1

If you want efficiency, go with cool white. NYC_SKP Oct 2014 #2

I've driven hubby nuts looking for a good warm white. woodsprite Oct 2014 #3

Here's the easiest way to discover what's best. Keep in mind the snappyturtle Oct 2014 #4

You probably want a bulb with... TreasonousBastard Oct 2014 #5

"Cheaper to operate" needs to take into account lifespan. NYC_SKP Oct 2014 #6

Sure, and some cheap cfl's... TreasonousBastard Oct 2014 #7

Given the life span, i can see the day coming when LEDs are given as wedding presents, hedgehog Oct 2014 #8

Get the adjustable RGB ratio bulbs seveneyes Oct 2014 #9

Message auto-removed Name removed Dec 2014 #10