In a portrait setup with two heads, you would place one head on the right socket set at 800 and a second head on the left set at 400 WS. This gives you a one stop difference key/fill light situation. If you place two heads into the same group, you are then splitting the power setting between the two. For example, if two heads are set on the left group and the switch is at 400 WS, then each head has 200WS coming out of it. The modeling light rheostats are for increasing or decreasing the brightness of the modeling light and help you see ratios. Never turn the power on a power pack on or off without a head being plugged into it. When you turn off the power pack, it often discharges the capacitor through the light head by flashing. If you turn the power off without a flash head there is potential for the capacitor to explode.The content you are trying to access is only available to members. Sorry.
