MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
When msc series 800 are mounted in a matrix and illuminated for long periods of time, certain precautions are necessary to prevent overheating due to the heat generated by the lamps; any size matrix may be illuminated at rated voltage for a period of time not to exceed 10 minutes, relatively square 3 x 3 or larger; no more than 25 per cent of the lamps should be illuminated for continuous duty