I used these for dehumidistats in my crawl space. I had 2v adapters that burnt out very quickly but these 10v have been going strong for over 2 months now. Love them!
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UL Listed 9V AC/DC Power Adapter For Arduino/Schwinn Bike A10 A20 A40 220 430 Elliptical Trainer/Crosley Cruiser CR8005A - Center Positive 5.5X2.1Mm Power Supply For UNO R3 - Only For Listed Model
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UL Listed 8FT 9V 1.5A AC/DC Power Adapter - FCC Certified & Compatible W/ Many Models
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