Answer You need the Voltage and the amps it can supply then use the magic triangle formula that is Watt = Amps X Volts say 400mA 12 volt that will work out to .4X12 = 4.8 watt
watts
The power output of a solar panel is typically measured in watts (W). A common residential solar panel has a power output ranging from 250 to 400 watts. Commercial solar panels usually have higher power outputs, up to around 500 watts or more.
The power output of a solar panel is typically measured in watts peak (Wp) or kilowatts peak (kWp). For a typical residential solar panel, the power output can range from around 250 watts to 400 watts per panel. Commercial or utility-scale solar panels can have higher power outputs reaching up to 500 watts or more per panel.
The amount of watts that a solar panel system can generate varies depending on factors such as the size of the system, efficiency of the panels, sunlight intensity, and weather conditions. On average, a residential solar panel system can generate between 250 to 400 watts per panel.
The power output of a solar panel is typically measured in watts-peak (Wp). The power output of a solar panel can vary depending on its size and efficiency, but a typical residential solar panel can produce around 250-400 watts per panel under standard test conditions.
The power required is(6) times (the amperes of current the radio draws when it operates) watts.
watts are equal to amps times volts.
To calculate the time it takes to perform 475 Joules of work with 25 watts of power, you use the formula: time = work / power. In this case, time = 475 Joules / 25 watts = 19 seconds. So, it will take 19 seconds to perform 475 Joules of work with 25 watts of power.
The power output of a solar panel is measured in watts, not kilowatts. A typical residential solar panel can produce about 250-400 watts. To calculate kilowatts, divide the wattage by 1,000.
To calculate the power used it is necessary to add up the power requirement: typical power values would be solar fans 0, fridge 20 watts average, lighting 200 watts, cooker up to 3000 watts, heater up to 3000 watts, mobile charger 3 watts, TV 150 watts. Solar panels of around 1.2 metres by 1 metre produce about 220 watts in maximum conditions, or about 15 watts out of direct sunlight. So without the heater or cooker a couple of panels should do it on a sunny day, otherwise add 15 panels for the cooker OR the heater.
To find the time taken to perform 500 joules of work at a power of 25 watts, you divide the work by the power. In this case, 500 Joules / 25 watts = 20 seconds. Therefore, it would take 20 seconds to perform 500 Joules of work with 25 watts of power.
If one were to do one hundred Joules of work in five seconds, he/she would have a power output of 20 Watts.