i paid like 3 bucks for three of them, which gave me 6 bulbs. Get zip ties when your there so you can hang your power strip any way you like. just zip tie the adapter. I built a light out of a basic vanity light from home depot. i used 23 watt bulbs from walmart. Bought a multi pack. Below is a picture.
I wired it with a lamp kit from home depot, just match the colors and screw and tape your connection with electrical tape.
JP