We know electricity to be the flow of an electric charge. And we hear terms thrown out like amperage, voltage and wattage when describing grow lights. But what exactly do those terms mean? 

Amperage: an electrical current or steady flow of electrons measured in amps (A) 

Voltage: an electrical force to move the electrical current through a wire measured in volts (V) 

Wattage: the total power of the amperage and wattage combined, measured in watts (W) 


To calculate electrical power, or wattage, use the following equation: 

Volts x Amps = Watts  

Example: 277V x 3.6A = 1000W