08-23-2020, 01:38 PM
Our LCDs fail because over time exposure to the near UV light hardens the liquid crystals making them no longer able to "twist" to realign the polarized light that got through the first polarizer so that it can pass through the second. its failure is unrelated to the cooling fan's being on or off.
LEDs such as used in the Mars have typically a 50,000 hour MTB--if properly cooled, hence the heat sink and fan. At 12 hours/day that's 11.41 years--if properly cooled (as the OEM engineers designed the tool)...
LEDs such as used in the Mars have typically a 50,000 hour MTB--if properly cooled, hence the heat sink and fan. At 12 hours/day that's 11.41 years--if properly cooled (as the OEM engineers designed the tool)...
![[Image: 816-20120803-wide800.jpg]](http://www.paladinmicro.com/images/ForumPosts/816-20120803-wide800.jpg)