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2A 3.7 ~ 5v a 14.2v per S9 L3 + Booster Board Repair Power Boost Module Pcb Board 36*17*14mm DC3.7V-12V - AliExpress
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Modulo Boost ad alta tensione Booster DC Modulo Step Up Power Supply Module Board per Discharge Tube Glow Tube Nixie/VFD : Amazon.it: Commercio, Industria e Scienza
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