【Upgraded version】: The original plug polarity of this adapter is center positive "+" and outer negative "-", but we have upgraded the product with a reverse polarity plug, which is suitable for more devices with inner negative "-" and outer positive "+" polarities, greatly increasing the practicality of the product
【Product parameters】: AC input 100V-240V 50/60Hz; DC output: 9V 1A 9W Bucket top size: 5.5mm x 2.5mm (compatible with 2.1mm) cord long 150cm/59in for 9V 9W 500ma 600ma 700ma 800ma 900ma 1000ma electronic equipment
【Safety Performance】: Built in emergency protection mechanism, with short circuit, overcurrent, overvoltage, and over temperature protection functions. But please do not use it at full capacity to achieve optimal performance and longer lifespan
【Widely applicable】 :This DC 9V 1A power adapter is compatible with Arduino UNO R3 Mega 2560 1280, Arduino CCTV, Elegoo, IEIK UNO R3 fits too for Pedals, Drum, Keyboards, Label makers and other equipment with power ports ofnegative-ti
【Product compatibility】 :Suitable for household appliances below 9V, 1A, 9W, such as massage guns, beauty devices, smart cameras, network switches, Bluetooth speakers, wireless routers, therapy devices, baby monitors, small electric tools, etc
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