5 Stück 3,5-12V auf 12V DC-DC Wandler Boost Modul Step-Up Motor Drehrelais
10,10 €
5 pcs step-up modules (input DC 3.5～12V, output DC 12V );. 2: DC -DC Boost module working frequency 100KHZ. efficiency is normal 80% ! 5: Cannot reverse polarity, or it will be short circuit, or will be born easily !
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