What needs to be found here is the amperage draw resulting in the 50 watts. The formula that you need is I = W/E. Amps = Watts/Volts. As you can see there is a need for the voltage to be stated. Without this voltage value an answer can not be given.
Bill Watts was born on 1939-05-05.
The Son Also Draws was created on 1999-05-09.
Ted Watts was born on 1958-05-29.
Rickey Watts was born on 1957-05-16.
15 AMP
William Carleton Watts died on 1956-01-05.
William John Watts was born on 1846-05-01.
Cornelius Clarkson Watts died on 1930-05-28.
Charles Albert Watts was born on 1858-05-27.
Charles Albert Watts died on 1946-05-15.
John Watts de Peyster died on 1907-05-04.
Philip Watts - naval architect - was born on 1846-05-30.