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Here's the thread where calvin12 posted the FLIR images:
https://pinside.com/pinball/forum/topic/leds-and-temp-reduction
An interesting conversation there. Even if you don't agree with all of calvin12's interpretations of his own data, it's great that he bothered to take the pictures in the first place, and then take more as a follow-up to attempt to answer specific questions re: insert temps, which certainly seem to show that flex LEDs can spot warm insert plastics more than incandescents.
Quoted from barakandl:The argument is that LEDs (may) make a pinpoint spot hotter than any pinpoint spot using a 44 bulb. While the 44 overall puts out more heat, a 44 bulb dissipates uniformly across the glass globe of the incandescent lamp. The LED heat is all in a very concentrated spot... that is the theory at least, i am not really sure if this is true, just helping you understand the proposed idea. (which makes sense to me).
For what it's worth, calvin12's FLIR images references above seemed to show this to be the case for flex LEDs -- because the user can situate the LED element very close to the insert plastic, the point of heat generation is often much nearer to the insert and therefore can heat the insert up somewhat more than can an incandescent, even though the incandescent is drawing significantly more power and creating significantly more heat overall.
Quoted from calvin12:look again, there is a pic specifically showing the setup form the backside to show that the flex was pulled down as far as possible from the insert.
Looking now. I respect your efforts to make it an even comparison, but to my eye a folded-down flex LED would still be closer to the insert than the heat source in a SMD LED or even an incandescent 44. But I wasn't there with calipers so obviously you're in the best position to judge distances!
Quoted from calvin12:That post was done for nothing more than to put info out in public so people can make informed choices. Personally almost every game i have is full LED, I like them.
I'm definitely not accusing you of being anti-LED -- I think you made that clear in your other thread! And I'm not trying to port bickering from that thread (which speaks for itself) over here, so happy to leave it at that.
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