Get the Combo Kit of my trusted 50 Ohm Loads. You get 2 - 25 Watt units and 1 - 50 Watt unit. This makes covering all your multi-scheme setups a breeze.
Safety is Job One! The units have Pigtails of short, appropriate length. Care should be taken to ensure that none of the metal components (resistor or heat sink) come in contact with any energized circuit.
Units will get Hot! Care should be taken when handling after use.