12V DC 1000mA (1A) regulated switching power adapter - UL listed : ID 798 : $8.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: ALITOVE DC 12V 1A Power Supply 1000mA 12W AC/DC Adapter, 100~240V AC to DC 12 Volt 1 Amp 0.6A Converter with 5.5 x 2.5mm 2.1mm Plug for LED Strip Light CCTV
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Outdoor Waterproof 12V AC To DC Converter - 12 Volt LED Supply 1A Rect - 12VMonster Lighting