Flow Rate

The rate of movement of the liquid coolant within an externally-supplied actively-cooled luminaire. Flow rate shall be held constant across the allowable temperature range and shall be reported. LM-79 testing shall employ water as the cooling liquid at an appropriate flow rate to maintain the targeted median inlet fluid temperature (i.e., middle operating inlet fluid temperature in the allowable range) as defined by the luminaire manufacturer. Flow rate, measured in gallons per minute (GPM).