Time flies . I took a Fern Howard lighting catalogue of the shelf earlier , dated 2010 to find everything obsolete due the march of LED lighting.
Just saying.
Just saying.
Tempus Fugit
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Kurt
Well-known member
Biggest change i have seen in a long time. Lights i installed 3 years ago i cannot replace easily and cheaply, OK if just one or two but not when there are 40 odd , lol
The printer I look after has said don't do anymore lighting maintenance ....replace with LED equivalent .
Theres a lot of recessed 1200 X 600 X 4 tube fittings there . In the general area a 40W LED 600 x 600 slim is replacing them @ £35 ea
Its around £12 for new tubes 7 starters. plus time to wash the flat sheet, so I think they're on the right track there. Eventually of course , my maintenance visits will drop to zero but C'est a vie Mon aime
Theres a lot of recessed 1200 X 600 X 4 tube fittings there . In the general area a 40W LED 600 x 600 slim is replacing them @ £35 ea
Its around £12 for new tubes 7 starters. plus time to wash the flat sheet, so I think they're on the right track there. Eventually of course , my maintenance visits will drop to zero but C'est a vie Mon aime
Kurt
Well-known member
Ha ha, fear not, i am already replacing LED panels and lamps, not many but enough to keep me in wine and fags, lol
Really !!! You're replacing already ! How long have they been in service ?
I ask because these are on 16 hours a day .
I still have to decide on the Print Room lights because of the temperature in there , specially in the summer . This weather should settle it TBH . There are 5ft X twin fluorescents in there ......I've only fitted one LED version because the temperature goes well above the manufacturer's recommendation with the print driers on . They have preset cut-outs to protect the electronics ..............my concerns were the lights shutting off on temp.rise during late shift , the emergency lights wouldn't kick in .
I ask because these are on 16 hours a day .
I still have to decide on the Print Room lights because of the temperature in there , specially in the summer . This weather should settle it TBH . There are 5ft X twin fluorescents in there ......I've only fitted one LED version because the temperature goes well above the manufacturer's recommendation with the print driers on . They have preset cut-outs to protect the electronics ..............my concerns were the lights shutting off on temp.rise during late shift , the emergency lights wouldn't kick in .
lots of duff LED stuff around. I'm fairly convinced that apart from duff quality of many products, that voltage spikes can trash LED? Maybe that's part of being a duff poduct design??
I believe that the expected lifetime they give in hours refers to light output & efficiency . The lamp life on these is given as 35000 hrs . In the case of the printers thats 7 years . Nowhere near the life of old fluorescents except there will be NO maintenance costs, more light output and a massive saving in running costs .
35000 hours to 70% light output I think is meant by that.
Well, the diodes themselves will be fine but the things that fail are drivers and/or power supplies.
had failed diodes in some products as well Lurch
Kurt
Well-known member
I am replacing ones that have failed well below their expected life, i dont believe its a function of how long they are on, more the manufacturer / batch.
I did have to giggle when the local wholesaler converted the trade counter to 600X600 panels and around 40% have failed in a couple of months. I also know they have moved from a supplier recently because of high failure rates, all under warranty of course...
I did have to giggle when the local wholesaler converted the trade counter to 600X600 panels and around 40% have failed in a couple of months. I also know they have moved from a supplier recently because of high failure rates, all under warranty of course...
