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LED light array

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Clive Hartland08/04/2019 11:44:46
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2427 forum posts
40 photos

I bought two of these about two and a half years ago, now this one shows dimming caused by burning of the waterproof clear housing over the lED's. Emailed LE Lighting and the first thing is they quoted that it is out of warranty. Now I have a spare so fitted that in place and am considering now to remove the waterproof shield off the other one that is still working. ?

The replacement does not have one. The symptoms of the LED light that went down were that it was flashing on and off.

Clive

Tim Stevens08/04/2019 17:35:49
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1014 forum posts

Er, might it be worth rotating the clear cover so that the majority of LEDs can shine through the clear areas? 10 degrees should be OK for the two outer rings and at least half of the innermost ones.

Cheers, Tim

Journeyman08/04/2019 18:04:03
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581 forum posts
85 photos

If the light was flashing it is likely that the driver circuitry has ceased to work

John

Clive Hartland08/04/2019 19:41:48
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2427 forum posts
40 photos

Tim, I cannot rotate it as the cover is shaped and the control circuity is fixed on top of it, hence I will have to cut it away. I think it iis just a condensation guard so that it can be used in damp places.

I have ordered two new ones as they had reduced prices and I will modify the new ones to clear the guard.

Clive

Jeff Dayman08/04/2019 20:05:21
1472 forum posts
37 photos

Hi Clive, Three observations about the clear LED cover that got the burnt spots - a) I think the manufacturer used polystyrene rather than polycarbonate for the shield, and it probably is not very flame retardant, maybe rated UL94 HB at best , where it should be UL94 V0 or 5VA rated material b) they placed the LED's far too close to the clear shield c) They may have been driving the LED's with way too much current. 10-15 mA is lots for LED's, usually.

If you cut away the burnt clear material over the LED's it will be an improvement on the flame retardency of the enclosure!

Chinese LED fixture makers get away with a lot. The better ones are fine, but there are some time bombs out there.

A UL or European agency approval sticker is a good thing to look for when buying an LED fixture but there are lots of fake stickers around, even ones with convincing hologram graphics that look real. If spending considerable money, I'd recommend calling the UL or Euro agency hot line and ask if the file number on the UL or agency sticker matches the product ID and serial number on the LED products. If they don't match, don't buy them. I've found some unsafe fakes that were on UL's black list by this method, on sale openly at a large hardware chain store here in Canada.

Clive Hartland09/04/2019 16:32:38
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2427 forum posts
40 photos

I ordered two new lamps and they arrived today, but, they have different attachment fittings. Not screw through but a metal plate to attach to the ceiling and then two press levers to attach.

As it is very dull today I have not been able to get up and cut away the clear cover. I dont want to do it while it is switched on!

Clive

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