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marwayne View Drop Down
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Location: Edmonton AB Can
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Posts: 1002 		Direct Link To This Post Topic: Temp. LEDs-incandesent
    Posted: 04 Jun 2013 at 11:05pm
Here's the scoop.
After 1/2 hour incandesent temp. of lens was 66 degrees C, the bulb temp was 76 degrees C.
After 1 hour LED temp. of lens was 27 degrees C, the bulb temp. was the same at 27 degrees C.
If you want something done right, do it yourself.
2011 RP172, 2016 Tundra 5.7 Litre, Ltd.


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Bill-GA View Drop Down
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Posts: 214 		Direct Link To This Post Posted: 06 Jun 2013 at 3:36pm
I took my 48 LED Panel, hanging free from fixture (see LED meltdown topic) and used my Ryobi spot temp gun to read backside and LED sides of the panel.  Not sure how accurate my $30 tool is but here's what I got:

Elapsed time.       Backside.       LED side

5 min.                    177 F.            189 F.
15 min.                  187 F.            199 F.

FYI.  Bill
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marwayne View Drop Down
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Posts: 1002 		Direct Link To This Post Posted: 06 Jun 2013 at 4:25pm
No wonder you had a meltdown, your LED lights are hotter than the incandesent lights.
My LEDs after 1 hour are 80F, incandesent after1/2 hour lens is 150F LED bulb is 168F
If you want something done right, do it yourself.
2011 RP172, 2016 Tundra 5.7 Litre, Ltd.


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Footslogger03 View Drop Down
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Posts: 362 		Direct Link To This Post Posted: 06 Jun 2013 at 7:27pm
So   ...all LED panels are not created equal ? We have 36 array LED slabs in all of our fixtures. Have never put a thermometer to them but often reach up when they've been on for a while and have never gotten a overly hot feeling ??

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techntrek View Drop Down
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Posts: 9059 		Direct Link To This Post Posted: 06 Jun 2013 at 8:32pm
Sounds like they are being over-driven to produce their output.  Typical of cheaper LED arrays - design them to put more amps through them than they should which makes them brighter.  However, that kills them faster mostly because they run hotter.
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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kymooses View Drop Down
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Posts: 1807 		Direct Link To This Post Posted: 07 Jun 2013 at 8:24am
Wow I could slow roast a chicken under those LED's.  LOL
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