Ceiling Lights - Hot

I'm getting a big box of 64-diode plates with 50\50 cobs. Should be here Tuesday. A gift from Lin
Hope it's not a surprise like red LEDs with a big yellow star. He said they'll ouput around 560 lumens @ 5K Kelvin. We shall see. I think this is really pushing the thermal capabilities of a fixture.

replaced mine with the 5050 leds they have 27 diodes and are the multi voltage type,Yes they do feel cooler to the touch warm may be best but definitely not hot like the 1157 type.

And the power savings was very noticable well worth the money.I also got some 6k to try at first was too blue i ended up getting some 3k ones and the temp is very similar to the 1157s.I ended up using the 5-6k ones for the outside lights.

Yup, those incandescent lamps can get mighty hot. We did a full interior light conversion 3 years ago primarily using flatpanel LEDs and they are all still performing well. Did measure temp of LEDs and they were in the 90s even when on for over an hour. Got ours in the 3000K range to mimic the incandescent bulbs they replaced, only have to have one-side of dual lamp fixture on as they are brighter than the stock bulbs. We did the conversion to save energy when camping off the power grid, almost felt like we added another battery. Our battery bank is nowhere as depleted in the morning as they once were when utilizing incandescent lighting.

swamprat 01 wrote:
LED's do run much cooler, (like no heat at all) And you are correct, the lens will continue to deteriorate due to the heat from the probably 57 bulbs. Also the LED's only use an iota of voltage that the standard bulbs do and will last almost forever.

Ooops...

LEDs operate at a lower temperature. But they are infinetely more heat sensitive than incandescent. This is not championship nit picking but many of the LED so-called equivalent lumen replacements - aren't. Highy suggest you follow the Happy Camper LED Crowd and choose a highly rated reviewed brand. I have personally found far too many brands to be.utter junk.

LEDs last a long time if not over-amped. But it is the electronic circuit inside that is most vulnerable and the claim of 50000 hours can be a joke. Ask specific questions and try one and if it does the job for you then you have found your prize.

3000K very yellow like a bulb operating at 10-volts.

5000K similar to sunlight. Easy to read by but women prefer yellower for decor

7000K distinct bluish tinge

More or less.

Super ultra maximum world's most powerful
In LED lamp fixture bulb language means the lamp may be competitive with incandescent brightness.

tenbear wrote:
Replace your incandescent bulbs with LEDs. Look for lights with 18 to 24 5050 LEDs. If you buy them on eBay they will cost much less than most US venders but you will wait 2-3 weeks for delivery. I bought mine on eBay.

I did ones with 48x 5050 LEDs per panel in mine, I think they are even a bit brighter than the incandescents I replaced, and much less power used, should last much longer, and MUCH less heat (only a bit warm, you can easily hold your hand on them after hours of use). I installed these before we even took our first camping trip, more than a year later, and other than the double sided mounting tape failing within the first month (replaced it with 3M VHB tape) there have been no issues with them.

tenbear wrote:
but you will wait 2-3 weeks for delivery. I bought mine on eBay.

Not if you pay attention to the point of origin....and don't go for the rock bottom cheapest price it won't.

I MUCH prefer to deal with someone in the US.
Mine ended up costing about $1.65 each, I think...versus "shipped from China" at about half that or less.

P.S. All LED assemblies make some heat.
I have two smaller "night light" size fixtures where the replacement LED pushed firmly on the plastic lens. When I noticed that one stopped working, I found the lens quite hot. Removing the lens cured the problem.

Replace your incandescent bulbs with LEDs. Look for lights with 18 to 24 5050 LEDs. If you buy them on eBay they will cost much less than most US venders but you will wait 2-3 weeks for delivery. I bought mine on eBay.

My dual light ceiling fixtures showed bad discoloration all around the fixture in the ceiling. Also turned the plastic lens brown. Mine was using the automotive 921 bulbs. I found out how hot they were when I had to replaced a burned out bulb. I have no idea how close I was to actually catching the ceiling on fire but there has been a few reports of this over the years.

I replaced mine with the $4.99 LED panels from ebay/china that stick up inside the fixture....



Photos from GOOGLE images

If you are going to replace alot of the incandescent automotive bulbs the best approach is to buy ONE LED REPLACEMENT first and try it out.

I initially spent around $150 on replacing a whole bunch of the automotive bulbs but had RFI problems I couldn't live with being a HAM RADIO guy. They tore up my HAM RADIO reception when ON. You will want to get the WARM LIGHT version and each board or assy should produce at least 250 lumens to give off the same light as an automotive 921 bulb.

The problem was tracked down to the LED BOARDS ASSY had the BUCK BOOST REGULATOR chips incorporated that makes the LED ASSYs work from a large range of DC VOLTAGES (9V-30V) produced RFI interference to my HDTV and other radio units that operated in the VHF range. My interference to HDTV showed up big time when I was using the OTA CRANK UP roof mounted antenna. The TV signal coming in the CABLE CONNECTION was too strong to be affected. The $4.99 LED BOARDs I eventually ended up with operate from 12-14VDC so I purchased ten spares with the thought when the boards went bad because of DC VOLTAGE I could just change out the cheap board. They were installed in 2010 and still going just fine... The highest DC VOLTAGE my on-board converter/charger unit produces is 14.4VDC.

These direct replacement LED round assys for the 921 bulb have become popular but I have no info if they produce the RFI problems with your HDTV or WX RADIOs..



Roy Ken

I just replaced all the lights in my 2013 Sunstar with Led bulbs. They work great no heating issues from the bulbs, I now leave a light on inside the motorhome for security reasons and not worry about about overheating the light housing. Pay now or pay later as usual!

I agree with the above hardly any power consumption so not much heat. I just wish that the LED lights were not so expensive. JMO