lighting question

hi i have seen grow boxes with like 4-5 20 watt energy saving bulbs in them but normally when i see it each light is screwed into a light fitting that is pluged into a extention lead im from the uk and i pretty sure u cnt get these here could anyone tell me what they are called these little light fitting things that have a plug on the otherside so it can be pluged in anywhere i want to maybe import an american extension lead and a few of these things so i can use 20 watt cfl in my grow box instead of of the 120watt thing i have in there now

http://www.homedepot.com/h_d1/N-5yc1vZ1xht/R-100170446/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053

Thats a link too home depot, theyre pretty cheap there but atleast you get an idea of what to call them. 20 watt cfls do ok but with 4-5 of them I heard produce more heat than the 120. I havent tried this myself, I use the 44-55 watts so it eliminates a couple but with a fan on the plant and bulbs keep it pretty cool.. hope this helps good luck!

thx alot mate has been bugging me what they are called i prob am not gona have 4-5 lights in there about 3 i was gona use heat isent rly a issue with my box it was the space the big 120 cfl took up compared to 3 20wat cfls