September 12, 20241 yr Whilst taking down one of my 10W (real 10W) 12V floodlights to replace the COB LED device butter-fingers here dropped it from about 2m.  Of course, it found the only rock within 1 light-year and the glass turned into a multi-piece jigsaw with no box lid picture đ  So, not having a suitable piece of glass to hand I used some 3mm clear acrylic. The light works nicely.  But!  Just how long is this supposedly UV tolerant acrylic going to last in the Thai weather?  Answers on a postcard to ...   "I don't want to know why you can't. I want to know how you can!"
September 12, 20241 yr don't touch the Christmas tree lights for god's sake .... Â let someone else put the star on top
September 12, 20241 yr Author Popular Post 3 minutes ago, steven100 said: don't touch the Christmas tree lights for god's sake .... let someone else put the star on top  "I don't want to know why you can't. I want to know how you can!"
September 12, 20241 yr 12 minutes ago, Crossy said: Whilst taking down one of my 10W (real 10W) 12V floodlights to replace the COB LED device butter-fingers here dropped it from about 2m.  Of course, it found the only rock within 1 light-year and the glass turned into a multi-piece jigsaw with no box lid picture đ  So, not having a suitable piece of glass to hand I used some 3mm clear acrylic. The light works nicely.  But!  Just how long is this supposedly UV tolerant acrylic going to last in the Thai weather?  Answers on a postcard to ...   Maybe you should be asking how long will the acrylic last with the combination of LED heat and ambient temperature?  It's a combination that degrades plastics. Oxygen, moisture, heat. UV is only one factor.  Why worry? I'm sure you can arrange an ample supply of 3mm acrylic.
September 12, 20241 yr Author 6 minutes ago, Lacessit said: I'm sure you can arrange an ample supply of 3mm acrylic.  We're down to about 1m2, I've got masses of white of course.  The front of these lights where the "glass" is don't really get very warm, the heat is all on the back (it's a crappy heatsink, hence the COBs not lasting 1,000,000 hours).  In the current torrent the unit is also being water-cooled!!!  With my luck we'll get a lightning hit that will fry it anyway đ  "I don't want to know why you can't. I want to know how you can!"
September 12, 20241 yr 1 hour ago, Crossy said:  We're down to about 1m2, I've got masses of white of course.  The front of these lights where the "glass" is don't really get very warm, the heat is all on the back (it's a crappy heatsink, hence the COBs not lasting 1,000,000 hours).  In the current torrent the unit is also being water-cooled!!!  With my luck we'll get a lightning hit that will fry it anyway đ  IIRC the quote is: " I'm so lucky if I bought a cemetery, people would stop dying".
September 12, 20241 yr Heat is used to shape acrylic sheet. So, when it falls out or forms a gravity well, youâll know itâs time to go get some window glass.
Create an account or sign in to comment