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220V to 1.25V-12.5V LM317 Adjustable Regulated Voltage DIY Kit Welded Step-down Power Supply Module PCB Board Electronic kits

USD 3.99USD 5.70

220V to 1.25V-12.5V LM317 Adjustable Regulated Voltage DIY Kit Welded Step-down Power Supply Module PCB Board Electronic kits

Description
Specification
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