Here,clockwise from the left side are the Innovatronx Explorer 1200 Ws pure sine wave inverter and battery,and immediately to the right of that is a Brown Line D402 LV power supply with a Pocket Wizard hooked up to it. The smaller black power supply to the right is the three-outlet Speedotron Black Line 405 power supply, which has a Black Line model 103 light head hooked up to outlet 3,and which has a PC sync cord running to the camera. The light unit at the upper right is a Brown Line M11 light unit fitted with a Black Line 7 inch 105 degree reflector. The Brown Line M11 light unit is an almost identical twin to the Black Line 103 head; they share the same chassis and modeling lamp sizes, and virtually the same basic design. Brown Line M11 and the Black Line 102,103,105,106,202 light units all use the Speedotron "Universal Mount",and so can exchange reflectors,speed rings,and other accessories.