This is the price inquiry on Taobao in China:50yuan
Voltage stabilizing power supply kit
This is a particularly practical power kit that allows you to freely switch between voltage display or voltmeter functions by twisting the voltage adjustment knob· Wide output power range: adjustable between 1.25V-14.5V, capable of outputting higher voltage compared to regular power kits· Equipped with voltage measurement function: capable of testing the voltage at any point of the external module· An optional 2mm thick acrylic shell is available, and our shell has precise openings that are both aesthetically pleasing and practical. It is recommended to choose this option.
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