LED meltdown |
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Anthony Valenzano
Groupie Joined: 09 Apr 2013 Location: Archbald Pa Online Status: Offline Posts: 44 |
Topic: LED meltdown Posted: 01 Jun 2013 at 10:00pm |
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LEDs indeed get warm, or aren't putting out much light and if they get hot they will fail very soon. Life of the LED is inversely proportional to running temperature, so a reputable LED manufacture will ensure the proper heat sinking path and Airflow. Really we shouldn't use a LED bulb, but a replacement LED fixture as LEDs need airflow and incandescent fixtures tend to restrict airflow.
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Bill-GA
Senior Member Joined: 13 Jan 2012 Location: Cumming, GA Online Status: Offline Posts: 214 |
Posted: 01 Jun 2013 at 10:00pm | |
Marwayne/Outbound, what's the nomenclature for the round 9 LED you are using? I'm trying to locate it online to measure its output in lumens. Thanks, Bill
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Bill & Bev
13 yr old dachshund 'Elsa' 2010 RP-176T (tent & slide-out) 2011 Toyota Tundra 2WD TV |
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Bill-GA
Senior Member Joined: 13 Jan 2012 Location: Cumming, GA Online Status: Offline Posts: 214 |
Posted: 01 Jun 2013 at 10:20pm | |
Techntrek, last month I purchased 3 interior LED flood light bulbs (60/75 watt equivalent) in Costco which replaced 3 indoor incandescent flood lights. I was concerned about heat in an IC recessed fixture. New bulb was totally glass enclosed (cost about $20+ US) and I was VERY impressed that it did NOT run very hot. Dimable too. I don't know if this is new technology or just packaging technology. Have you seen these? |
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Bill & Bev
13 yr old dachshund 'Elsa' 2010 RP-176T (tent & slide-out) 2011 Toyota Tundra 2WD TV |
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marwayne
Senior Member Joined: 25 Oct 2011 Location: Edmonton AB Can Online Status: Offline Posts: 1002 |
Posted: 01 Jun 2013 at 10:55pm | |
Technical specs:
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If you want something done right, do it yourself.
2011 RP172, 2016 Tundra 5.7 Litre, Ltd. |
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Outbound
podders Helping podders - pHp Joined: 19 Nov 2009 Location: Oshawa, Ontario Online Status: Offline Posts: 767 |
Posted: 02 Jun 2013 at 12:52am | |
Actually, mine have 12 x 5050 SMDs
Color: 2850k Voltage: 11-15 V DC Wattage: 2 watts Lumens: 220 |
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Craig :: 2009 RP171 towed by a 2017 F150
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techntrek
Admin Group - pHp Joined: 29 Jul 2009 Location: MD Online Status: Offline Posts: 9059 |
Posted: 02 Jun 2013 at 3:56pm | |
I've seen enclosed "bulbs" for the lower wattages but not at that level, interesting. |
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Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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Anthony Valenzano
Groupie Joined: 09 Apr 2013 Location: Archbald Pa Online Status: Offline Posts: 44 |
Posted: 03 Jun 2013 at 8:18am | |
I'm sure it's as simple as it's really a lower power bulb. I've seen those and they are only about 3 watts, which is low enough to dissipate through the bulb base and the bulb glass.
As far as I've seen LED bulbs fall into one of three categories: 1.) Low power and low light - never really heat up, will last a long time (25K hours) and inexpensive. 2.) Higher power, lots of light, with aluminium or ceramic to dissipate heat, expensive, but last 50K-100K hours - basically properly engineered. 3.) Lots of light w/ no heat sink, basically a cheap knock off that will burn up fairly soon (soon being 1000 hours usually) I design circuitry for LED fixtures, there's no magic - just these trades. |
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kymooses
Senior Member Joined: 01 Aug 2010 Location: Louisville, Ky Online Status: Offline Posts: 1807 |
Posted: 04 Jun 2013 at 9:57am | |
@Outbound and @Marwayne
Do the ones you all have. I'm just calling them pancake style cause they are flat like that. Do you all feel that they dissipate heat well enough or that they don't get too hot? I've read that they don't do a great job of dissipating heat and so I was looking at the type that is a rounded cylinder type on a ceramic base. |
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Goose
Senior Member Joined: 24 Sep 2010 Location: Arizona Online Status: Offline Posts: 672 |
Posted: 04 Jun 2013 at 10:36am | |
Thanks Doug for the info, I have a couple of LED's in the house and very happy with the output and they do have heat sinks around them. The ones that I just put in have a G10 base in a track light with no heat sinks so with the info that Anthony provided we will see how long that they last.
I am sitting on the fence when it comes to the lights in the POD, I have not decided to go with the "pancake style" like Marwayne and Outbound or the "tower style" that puts light 360 degrees and makes a little better use of the design of the light fixture. Goose |
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Mother Goose's Caboose..2011 RP171..07 Grand Cherokee
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ToddLat
Groupie Joined: 06 Aug 2012 Location: Pittsburgh, PA Online Status: Offline Posts: 54 |
Posted: 04 Jun 2013 at 12:38pm | |
Outbound,
Where did you get the 12 SMD lights? What is the catalog number? I would like to get some of those!
Thanks
Todd
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Todd and Beth
2013 RP 176 T 2013 Nissan Pathfinder |
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