Faisal KhanAnswered Apr 9, 2013The best way is to have a variable Wattage bulb (that has capacity in excess of your single array) and then use a Watt meter. It will give you a very reliable measure of the wattage being given out to the end circuit.
Say you array is for 100 Watts. Get a 250 Watt bulb. Light it up (it will naturally glow less) and with your Watt meter you should be able to see what sort of Wattage is coming out.
Say you array is for 100 Watts. Get a 250 Watt bulb. Light it up (it will naturally glow less) and with your Watt meter you should be able to see what sort of Wattage is coming out.