Multitester tested for voltage. This is a voltage EQUIVALENT wall mount version for the voltage regulator, power supply, powersupply, inverter, adaptor for AC input 120V and DC output: 12vdc 500mA (aka: 12VDC 0.50A). Amperage can be higher, but never lower. Round barrel connector with a positive center. Please verify your device electronic needs before purchase. Photo is generic. Shape, size or color may differ from photo. Questions are encouraged. Special heavy wrapping is provided to protect the prongs. S H in the contiguous USA is $4.(insured shipping). Please see other interesting items by JGrit USPS DELIVERY TIME: As stated in the item listing, seller will drop-off your item to the USPS within 5 days of receiving cleared payment. How long it takes to deliver to your door is strictly within USPS control and not within the control of seller. Please leave 5 stars for seller 5 day drop-off time.