The 3528 Hitlights are of the 60 LED/M type on 8mm wide pcb ..... The only ones we get heat issues with are the 240 LED/M type on 16mm pcb - and even then it is not major unless specifically mounted onto a material which holds rather than disperses heat. But as a general rule - the hotter the LED, the shorter its life, so aiming to keep them cool from the outset will make the most of your time/effort and cost of installation.
post #431 of 598
6/20/13 at 10:10am