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Topic ClosedLED meltdown

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Anthony Valenzano View Drop Down
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Joined: 09 Apr 2013
Location: Archbald Pa
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Direct Link To This Post Topic: LED meltdown
    Posted: 06 Jun 2013 at 9:11am
Don't waste your money on that. More LEDs do not equal more light - you can get all the light you need out of one good LED. What is limiting the amount of light is the surface area for dissipating heat. Every LED is about 70-100 lumens per watt. In other words more heat equals more light. If that heat isn't dissipated then more heat equal less life or meltdown. Search for a bulb that looks like it can dissipate heat and pick that one. For my rig I picked this one.

http://www.homedepot.com/p/Philips-3-Watt-10W-T3-LED-Landscape-Capsule-Cool-White-4100K-Light-Bulb-407998/202514337#.UbCI_pzD_ng

Its 2.5W and 100 lumens which means they aren't lying. It uses the ceramic to dissipate the heat, but still gets warm. I measure the light output and its 20% more or so than the stock incandescent. I did put a bit of aluminum tape behind these to reflect the light down.
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Location: Oshawa, Ontario
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Direct Link To This Post Posted: 06 Jun 2013 at 9:03pm
Warm white 1210 SMDs put out 6-8 lumens
Craig :: 2009 RP171 towed by a 2017 F150
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Bill-GA View Drop Down
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Direct Link To This Post Posted: 11 Jun 2013 at 11:09pm
There seems to be FOUR TYPES of LEDS being sold (on EBay). Larger 5050, smaller 1210, small hi-intensity 3528 and then there's what looks like a panel of small glass covered LED's that are just called 'LED's'. Of course there's very little doc about lumens, watts, heat, etc

Here a link which offers 'type' selection...

I am NOT recommending this seller, just using it as an example. My 48 LED panel has the type 3528 (I think) which is VERY hot ... Thus my meltdown.

Is there an LED place to go to make sense of this all? I know folks have express likes for various products ... but I'm looking for info on LED's.
Bill & Bev
13 yr old dachshund 'Elsa'
2010 RP-176T (tent & slide-out)
2011 Toyota Tundra 2WD TV
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Bill-GA View Drop Down
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Direct Link To This Post Posted: 12 Jun 2013 at 10:04am
I found this page with lots of raw LED info.


Interestingly at the bottom of this link, under heat dissipation, it says when an LED is installed and the temperature is expected to exceed 60C, then a forced air circulation method must be provided.

Also, DO NOT LOOK closely at high intensity LED's as they could damage eye sight.

I may purchase ONE glass LED Panel just to see what it's characteristics are - out of curiosity.

Bottom line - when you buy stuff from China with no docs, your on your own (as has been said many times here).
Bill & Bev
13 yr old dachshund 'Elsa'
2010 RP-176T (tent & slide-out)
2011 Toyota Tundra 2WD TV
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