Power supply for 3D printer

My power supply for my Smartrap

AC 110V-220V TO DC 12V Switch Power Supply Driver
Type (Output) 12V 30A 360W
Size (LxWxH) 200mm*100mm*45mm
Intput Voltage (AC) 110V/220V +/- 15%

U-type Plug Power Supply Switch Adapter Socket Module With Fuse Kit
Price 2$
Description:
Plastic 220V/110V Power Supply Switch AC Power Outlet with Socket Fuse for 3D Printers DIY Parts
15A Power Switch AC Power Outlet Switch with Fuse and Triple Socket for 3D Printer
Specifications:
Socket: Triple
Material: Plastic
Voltage: 220V/110V
Current: 15A (inside with 1pc 6A fuse)

0.28" LED DC 0-100V 3 Wires Digital Voltmeter Display Voltage Panel Meter DE
Price 1€
Description:
Color: Red/Blue/Yellow/Green
Three line Measuring range: DC 0V-100V
Two line measuring range: DC 4-30V
Working current: More than 20Ma
Input range: DC 5-30V
Display: Three 0.28inch digital tube
Dimens