Wall Adapter Variable from 1.5Vdc to 12Vdc (500mA)

From the shop's description

Wall Adapter Variable from 1.5Vdc to 12Vdc (500mA) is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. This is industry quality DC power adapter with 1.5V and 3v and 4.5v and 6v and 7.5v and 9v and 12v , 1A output. It has barrel jack connector. . Specifications HOPSON brand Model M100K Switchable 110V and 220V 50/60 HZ Output : 1.5, 3, 4.5, 6, 7.5, 9 and 12V DC 1000ma max Negative – Positive Polarity settings Multiple Connector Ends It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.