If you're interested in building your own 2kW adjustable voltage socket, this article might be worth checking out.
For this DIY project, you'll need:
· one 86 wall junction box,
· one five-hole single-switch panel,
· one 220V voltage indicator light,
· one prototype switch,
· one three-wire power cord,
· one 2000W SCR voltage regulator,
· and some extra wires!
To make assembly easier, you'll need to modify the regulator's potentiometer to be external. It's actually quite simple—see the picture below for reference.
First, drill the holes and do a quick pre-installation.
Then you can start assembling everything.
Here's what it looks like once it's put together:
The regulator needs to be connected to a load before you can start adjusting the voltage. The lowest voltage it supports is 75V.
Here's the original voltage reading:
You can also turn off the voltage indicator light, as shown below.
The power adjustment is quite convenient.
If you're using this setup for an electric blanket, and your room temperature is around 23°C, it's best to ventilate twice a day. Otherwise, it might get too warm and dry, which can be uncomfortable.
When it gets colder, that's not great either—so a good balance is to keep the blanket on high mode and control the voltage around 100V. That should feel just right.
Done!