With WLED off - I measure 20W of power consumption.
I first thought is was a faulty main power supply or step down converter from 12v>5V but after checking this, high consumption is only there with the ESP connected to 5v. It’s a 2x5m string 12v setup each strong powered separately via same powersupply . Wled is definitely in ‘off’ mode. Led strips are WS2815 with 300 leds/5M
Is this expected behavior? Any way to change this (beside putting a physical plug or switch before the setup)?
Even if no LED lights up, the LED strip consumes energy, how much energy that is per individual LED, I don’t know either. With its own small power supply only for an ESP module and a relay module, the “big” power supply can be switched on. Ready-to-use relay modules are available. The control of a relay is already provided in the WLED program.
Be careful when switching the mains voltage. If you switch only the output voltage from the “big” power supply, the relay must be able to switch the large currents. In this case, the “big” power supply constantly consumes energy.
One thing to be aware of… Relay contact DC rating is always less than its AC rating,
Ref:
Thanks for this. Was already looking into that.
I’m planning to switch the 220v AC. The strips draw about 100W max at 100% brightness so with a 10a relay I should be fine (I think).
Yes. That’ll work with plenty of capacity to spare.
I mentioned the DC aspect because of this comment:
Just to report back that this worked perfectly.