no ballast needed.... all you need is the bulb... then a thing to screw it in ( 2 bucks at home depot or lowes) then some wire ( 5 bucks at HD or lowes) then a plug to get it into the wall ( 2-3 bucks at HD or lowes) then rig it all together.... i take it you know how to make a circut... there will be 2 wires you need... 1 warm 1 cold/nuteral... 2 wires should be already attached to the thing you screw the light bulb into... take the two wires
1 will be black(hot) 1 will be white(cold) take them one at a time and splice them onto longer wires then put the longer wires into a plug... woll spliceing use something to cover the open areas of wire.... either a cap or electrical tape.... make sure the exposed wires ( hot and cold) do not touch each other woll the light is pluged in... or it will short out that part of your house ( i know from experience)