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Broken GE BLB LED

Broken GE BLB LED

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This GE blacklight blue LED had an accident, so I cleaned off the rest of the glass-like material to get a good look at the rest.

I have since lit it, it's a 4000K-ish? color. It's perfectly usable for general lighting, but should I be worried about UV? If not, I could see using it in a decorative fixture somewhere.

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Filename:IMG_2897.JPG
Album name:ace100w120v / LEDs
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Date added:Oct 11, 2017
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Date Time:2017:10:11 19:38:46
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Lightingguy1994
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T12 are and always will be my favorite bulb


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Oct 11, 2017 at 10:13 PM Author: Lightingguy1994
No its very unlikely that it puts out harmful UV, the lamp is based on a blue or blue-violet LED with a phosphor to give it the white light...which im not sure why they had it white in this lamp anyways since its filtered out.. The diodes themselves are deep blue emitting and they can make things glow like ultraviolet.
FGS
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Rory Mercury!


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Oct 11, 2017 at 10:18 PM Author: FGS
You'll be fine. One request I'm sure everyone is thinking of asking. Please get a close up pic of the clear plastic thingy lit up.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

Lodge
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18W Goldeye / 52W R&C LED front door lighting


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Oct 11, 2017 at 10:19 PM Author: Lodge
Nope there is no hazardous UV from them, UV LED diodes that emit shortwave UVC are crazy expensive a single good one would be worth more then that light bulb...
Lightingguy1994
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T12 are and always will be my favorite bulb


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Oct 12, 2017 at 12:57 AM Author: Lightingguy1994
Yes lets see it lit up

Curious as to why they did not just use a blue LED without phosphor in this lamp to achieve the same effect? One would believe it to be cheaper to use blue only diodes rather than phosphored ones whos light gets largely filtered out by the woods glass dome anyway
Ash
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Oct 12, 2017 at 02:03 AM Author: Ash
What was the outer made of ?
FGS
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Oct 12, 2017 at 06:12 AM Author: FGS

What was the outer made of ?


Woods glass.

I think they wanted to mimic the incandescent versions minus the stupidly high amount of heat given the presence of white LEDs. Otherwise they'd use all UV LEDs instead.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

Ash
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Oct 12, 2017 at 07:38 AM Author: Ash
Thats what makes no sense to me, and i see that the edges of the broken Glass are Black. Why they bothered with White LEDs instead of using Blue or Purple. And then, Blue or Purple LEDs put out a single spectral peak, so there is not really point in using Woods Glass
takemorepills
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Oct 12, 2017 at 02:07 PM Author: takemorepills
There should be one or two blue or UV LEDs mixed in with the whites. Put on a pair of sunglasses, light it up and check. I remember my GE BLB had this config. Didn't help fluoresce a damn thing, though.
ace100w120v
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Oct 12, 2017 at 02:35 PM Author: ace100w120v
This was a really good imitation of an incandescent version, but it did fluoresce more for sure- I used it as a night light previously, it fluoresced enough and gave enough dim purple light to be suitable for use as such.
FGS
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Oct 12, 2017 at 02:45 PM Author: FGS
Can the clear plastic thing be removed by those screws I see?

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

ace100w120v
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Oct 12, 2017 at 02:49 PM Author: ace100w120v
Possibly, though I have yet to try...
Ash
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Oct 12, 2017 at 03:00 PM Author: Ash

There should be one or two blue or UV LEDs mixed in with the whites. Put on a pair of sunglasses, light it up and check. I remember my GE BLB had this config. Didn't help fluoresce a damn thing, though.

For what ? The Whites allready have the exact same Blue peak in the spectrum, and the higher K temp ones have less of the Orange. Things that fluoresce under Blue (many Fluorescent materials do) fluoresce even under ordinary White LEDs. There are far more materials that fluoresce under UV though and thats where all the common/inexpensive UV LEDs are falling short
FGS
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Oct 12, 2017 at 03:24 PM Author: FGS

For what ? The Whites allready have the exact same Blue peak in the spectrum, and the higher K temp ones have less of the Orange. Things that fluoresce under Blue (many Fluorescent materials do) fluoresce even under ordinary White LEDs. There are far more materials that fluoresce under UV though and thats where all the common/inexpensive UV LEDs are falling short


To help fluoresce materials the white LEDs can't do alone.

Why I like LEDs on top of other lighting tech?
LEDs = Upgrade 95% of the applications. (That is if you avoid eBay's LEDs).


LED brainwash? No, people uses them cuz they work well for them.

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