synergistic research orange blue fuse direction.

Can someone please tell me how CdS cells work and whether they are passive or active devices?

Oh come on Clearthink, that troll is even lower than your trolling standards. Now I get that somehow I have triggered you into trolling me, but I suggest perhaps you may wish to show some respect for other forum members and not troll every post I make, which are at least related to the topic and are not personal attacks. I am sure others may be tiring of your repeated trolling of my posts.