EAF working temperature range

limburg11

Hi,

I'm using 2 EAFs for my telescopes and would like to know the working temperature range of those devices. More specifically, if it is necessary to heat them in cold winter nights. Some shops sell heating sleeves for that purpose, but I'm not sure if that's really needed.
Thanks, Bernd

WalterT

Hi, not sure if it helps but I’ve had mine outside cooled naturally to -30C by Chicago weather and 35C in the summer without issues.

limburg11

Definitely helps, thanks!