CRAO is considered a stroke of the eye. Studies show that about two-thirds of patients have underlying high blood pressure and one-fourth of patients will have significant carotid artery disease (plaque with narrowing of the artery lining), cardiac valvular disease or diabetes.
Electrical pressure is measured in volts, or voltage. All electrical devices are rated for specific voltages. Most devices and small appliances in a home are rated for 120 volts, while high-voltage appliances, such as electric dryers, ranges, and many baseboard heaters, are rated for 240 volts.
A watt-hour (Wh) is a unit of energy; itâs a way to measure the amount of work performed or generated. Household appliances and other electrical devices perform âworkâ and that requires energy in the form of electricity.nowing the difference between a watt (W) and a watt-hour (Wh) helps you understand the impact of your home energy use on your electric bill. You can also compare your home energy use to the energy generated with your Enphase microinverter system.