Multitester tested for voltage. Power supply voltage EQUIVALENT to many BELL Phones brand adapter for many small device power needs with AC input 120V and DC output: 6 volt and 100mA. (aka: 6vdc 0.10A). Amperage can be higher, but never lower. Please check your device for electrical requirements. Questions are encouraged. Shape, size or color may differ from photo. Round barrel connector with a hollow NEGATIVE center. Special heavy wrapping is provided to protect the prongs. S H in the contiguous USA is $5.(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.