3 x PQ30RV11.
eBay
5V 12V 10A Voltage Regulator PWM DC Motor Speed Controller Governor Stepless Speed Regulator LED
Aliexpress UK
1 x Electronic Volt Regulator. Adjustable tension: 50-220 v AC. Maximum power: 2000 w. hope you could understand. Quantity: 1 pc.
eBay
5V USB Voltage Regulator Fan Stepless Speed Controller Regulator With Switch DC 4-12V to 2.5-8V 5W
Aliexpress UK
Output: VOUT output positive level, GND output negative. Module size: 35.6 (mm) x16.8 (mm). Output Current: 1.5A (minimum), 2.2A (typ).
eBay
LM317 DIY Voltage Regulated Power Supply Electronic Kits Adjustable Voltage Regulator DC 220V to
Aliexpress UK
Do not overload the output.
eBay
DC-DC Voltage stabilized power supply module Adjustable boost& buck voltage regulator module
Aliexpress UK
The input is connected with the AC 220V. 1 Power Regulator. (It is best to leave more than half of them). Output wire is connected to the appliance motor. Used for dimming, speed regulation, temperature regulationetc.
eBay
Power Transformer Voltage Regulator 220V To 110V Voltage Converter Step-Down Transformer 220 110 EU
Aliexpress UK
Shutdown Current: can be shut down, EN default high level, grounding module shuts down the output. Output current: 4A Max. Output Ripple: <20MV. Output Precision: s0.1V. Heat Dissipation: Natural Cooling.
eBay
DC-DC Power Supply Module Boost Module Step-up Voltage Converter Voltage Regulator XL6019 Adjustable
Aliexpress UK
The circuit structure of the buck module cannot be adjusted by short circuit. Constant current adjustable: 0.5-8a. 70 52 46mm (with radiator and fan). Weight: 70g bare board, 120g radiator, 135g fan.
eBay
Voltage Regulator DC-DC Voltage Stabilizer 8A Power Supply Adjustable Speed Controller LED Dimmer DC
Aliexpress UK
Type: Power Converter. Output current: 10A/15A/20A (optional). Output power: 120W/180W/240W.
eBay
CNC DC Adjustable Buck Power Supply Voltage Regulator Constant Voltage Current Step-down Module
Aliexpress UK