9V AC/DC Power Supply Adapter 500ma (0.5 amps) 5.5 mm*2.1 mm Tip (5.5mm OD X 2.1mm ID) - AC to DC Electric Transformer Inverter for 9-Volt DC Electronic Devices Up to 0.5amp Slim Wall Plug & LED UL

I use it on a fan that takes 6 D cell batteries so it is saving me money. I dislike buying batteries so much because of their outrageous cost. It's like a mortgage on your house, it never stops. It is working, my only negative is I wish the cord was about 1 to 1 1/2 foot longer.

The original power supply for my hand held spot light failed, and this one recharges it just fine. Happy

Since a power adapter was not provided by default with my daughters MIDI keyboard (it's normally powered just by the USB cable), I needed to find the correct adapter that match voltage and polarity. This one did the trick as it was hard to find adapters with center positivity – most were negative. Other than the USPS taking over a month to get this to me, I was very pleased that the adaptor arrived safely and worked correctly.

I am having to write this information second hand, as I bought this as a gift. My dad had a figurine that used batteries but they didn't last long. We bought the adapter to do away with the batteries. It worked perfectly.He is very happy, not having to worry about changing batteries. Thank you.

This power supply works just fine and the price was half what a replacement from the vendor of the equipment I need it for charges. I'm happy, would recommend it and would buy it again.

Cord is so short it couldn’t reach from the plug to my flood smart box 3 feet away. Very light and cheaply made.Also I confronted the seller about his practice of a rolled up padded USPS Priority Mail Envelope as padding inside your shipping bag. This costs all of us taxpayers money so they can make an extra buck skimping on their shipping costs. I warned them if they continued doing so I would contact the USPS so if any of you receive your product like this be aware, they've been warned.

Doesn't seem to charge like the original charger.

Just plugged in. Cord is 42 inches long. Cord exits sideways from outlet allowing 4 power supplies to be plugged into a 4 outlet receptacle. Unit doesn’t get to warm indicating it’s power efficient. Removed batteries from FloodStop electronics and it functioned indicating power supply output is “close enough” to as advertised. It has an led light indicating it’s plugged in or is working??? That is a complete guess what the led light indicates.