3A Spannung Digital LM338K Leistung Einstellbar Linear Spannungsregler Modul, DIY
13,43 €
LM338k maximum power calculation: If the input 25v, 18v output load current of 2A, then the power is on LM338k (25-18) x2 = 14w, LM338k power can work within the normal 50w; if it is input 36v, output 3v current 3A, then the power is on fall LM338k (36-3) x3 = 99w, LM338k certainly can not afford this, hope you can understand.
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