I'll start with a kenetic switch.
No power required at all.
I'm guessing there is a piezo crystal or some such thing in it, basically the physical effort of clicking the switch is converted into electric energy which powers the transmitter enough to send the on/off to the receiver. I ordered one and it works well, you literally just stick the switch on the wall, and you are done. You can buy all sorts, including multiple channels or multiple switches for the one device, there is a pairing process to match receiver to transmitters/s.
Using it to switch on/off under-cabinet lighting in the utility room. Previously had a rechargeable light that had a PIR, but this one works better and I have already reassigned the USB one to the larder.
No power required at all.
I'm guessing there is a piezo crystal or some such thing in it, basically the physical effort of clicking the switch is converted into electric energy which powers the transmitter enough to send the on/off to the receiver. I ordered one and it works well, you literally just stick the switch on the wall, and you are done. You can buy all sorts, including multiple channels or multiple switches for the one device, there is a pairing process to match receiver to transmitters/s.
Using it to switch on/off under-cabinet lighting in the utility room. Previously had a rechargeable light that had a PIR, but this one works better and I have already reassigned the USB one to the larder.
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