Looks like we won't be getting LED lamps with a decent light output - say 2000 or 3000 lumens or so - until the manufacturers learn how to make LED chips in larger sizes. Are there problems in doing this ?
Jim Hawkins
Manufacturers appear to have learned in the last 22 minutes... :-)
Thanks for the reference. It's interesting, but their day white chips are only 100 lumen each, and the warm white ones only half that. And they appear only to fabricate them into strips of six chips. I think there's still some way to go before we get any 300 X 300 mm ceiling panels producing 2000 - 3000 lumens.
Jim Hawkins
Is the "addition" of lumens linear or log? Would an array of 60 chips @ 50 lm give you 3000 lm total? 60 chips is only an 8 x 8 matrix. 30 mm pitch will fit in a 300 mm square no problem...
Dissipation probably. You would need a transparent conductive transparent heat sinc?
Brian
I wonder how long they last and how efficient they are though. Often the area that emits light is very small and getting enough that do not block each other in a reasonable package I think is still being experimented with. Brian
7830lm from 50mm x 45mm element.
Even TLC do LED panels, 3546lm 600mm x 600mm
The link I posted died shortly afterwards - must be site design. Apologies anyone who got taken to the site's search/home page.
It was actually an array (I missed that to begin with). But assembled as if a single element. Similar to the one Bill later posted.
Not sure if true single-element designs would have any advantages? Obviously the manufacturing issues affect price (is it cheaper to make one huge LED or assemble several smaller - cheaper - ones?). But does it make any difference to an end user?
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.