Fotronix StopLight SL-80 High Speed Flash battery studio/outdoor lighting

  
Fotronix StopLight SL-80 High Speed Flash set of 4 - excellent condition. Each Stoplight 80 flash unit has a Guide Number of approximatly 80 at ISO 100 providing enough power to shoot f22 at 3.6 feet from the subject with a flash duration of 60µs ie about 1/17,000th sec.