Note: choose If it is too large, the lamp beads will be a little darker! It is better to be just larger than 5-20W! (If the original is 160W, just buy 160W). Input line (red line) IN: 220-240V; Output line (gray line and white line)OUT: 12V.
eBay
3A Mini DC-DC Buck Step Down Converter Board Module 5V-30V to 3.3V 5V 9V 12V DC DC Voltage Regulator PCB Board Power Buck Module
Aliexpress UK
Input: DC 25V (maximum). Current output: 8A (maximum). Conversion efficiency: up to 95%. Output: 3.3V/5V/9V/12V. Output short-circuit protection.
eBay
LM2596 Step Down Module DC to DC Adjustable Buck Converter Voltage Regulator Conversion Power Supply Module LM2596S
Aliexpress UK
Output power: 75W. This is a step-down converter. LED power indicator. The product is an adjustable step-down module.
eBay
XY6509S CNC DC Regulated Power Supply DC Buck Converter 0-65V 585W Step-Down Stabilized Voltage Current Regulator 360°Rotation
Aliexpress UK
Suitable for Water dispenser, rice cooker, fan fax machine, air machine, (Hair dryer, vacuum cleaner,coffee maker……) computer. It features a heavy-duty cord with 1 standard UK 3 pins plug. There are a total of four outputs on the front panel.
eBay
1-20Pcs DC-DC buck-boost Converter module 3V~15V to 1V~15V 5V 6V 9V 12V 700ma/5W Automatic Adjustment Step Down/UP Power Voltage
Aliexpress UK
Output Impedance: 15mΩ. Input and output pressure: 2V. Module size: 43mm 20mm. Load Regulation: 100mV. Output characteristics Quiescent Current: 8mA. Peak Current: 1.5A. Your support will keep us moving forward forever.
eBay
1500W/1200W DC-DC Buck Converter 15-90V to 2.5-72V 50A Constant Voltage Adjustable Step-Down Module High Efficiency
Aliexpress UK
Ideal for use with low powered devices from the US in the UK that are under 45W, such as alarm clock and LED lights. Not suitable for devices over 45W, this includes hair dryers, straighteners, kettles, TV's or fridges.
eBay
12V 24V to 5V 10A 5A 3A Step Down DC DC Converter Buck to 5 Volt Voltage Regulator 50W 24V 12 Volt LED Power Supply for Cars
Aliexpress UK
Output power: 72W. - Compact converter in tough aluminum casing with pre-drilled mounting holes. Output current: 3A. - Practical and portable solution to your power problems.
eBay
DC to DC Adjustable High Efficiency Voltage Regulator 6-100V to 5V12V Buck Converter DIY Power Supply Step-Down Module
Aliexpress UK
Output current: 1A, 2A (Optional). High quality aluminum shell for heat dissipation and increased durability. If you are satisfied with our service, pls. Highly integrated SMD components for high stability and reliability.
eBay
DC-DC 12/24V to 8.4V 5A 42W DC Power Converter 1A 2A 3A 4A 5A Auto Buck Regulator Step Down Voltage Supply Module For Car
Aliexpress UK