Just like my trusted 50 Ohm 25 Watt Load, the 50 Watt version is just as good, just a little bigger. Built for that Multi-Scheme setup where 25 Watts is just a little undersized. Not practical for everyday use due to size and weight.
Safety is Job One! Please be careful with any 50 Ohm dummy loads. The pigtail is short to keep it out of anything that is hot. Care should be taken not to let the resistor or heat sink come in contact with anything that is energized.