Bed heater problems

[Geneo 0]

I've got another rookie question. I bought a bed heater for my  printer. I've got it all installed on my xvico. It works, but if I try to run the nozzle heater and the bed at the same time the machine shuts off. either one will run by themselves. It seems that the Chinese power supply isn't strong enough to run both. So, I would like to run the bed heater independently from the printer. I need a controller with a way to set the temp. This thing is 24 volts. I'm attaching a pic of the plate. Can anyone help an old man to find what I need.