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Thank you for that - unfortunately it´s not what I´m searching for.
I don´t need power, only signal 0-10V to PWM 0-100% @ 10V

Thanks anyway.

What modulator do you use? I have pumps for that signal (independent from aquaristic), where I need such a device.



Yes, that´s right. Same for channel #2

Correct



It´s automatically controlled by the 0-10V port - it´s switched on if analog port has a value > 0%



Not sure, but I think it´s for moonlight and sunrise/sundown simulation (the...

Connect the relay between pin 4[switched] and 3 [ground]



It´s designed for 12V relays - but be aware, relays should be the low power type to not destroy the contact.
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