Four foot flourescent style lights. Great for garages, warehouses, barns, basements, workshops, etc. They have regular plugs with in line on/off switches--not meant for hardwiring. They can be hung from ceilings or fixed directly to ceilings or walls. They include jump wires that allow the lights to be daisy chained for additional lighting when there are not enough outlets at hand. I have a number of them for sale that have been used but are still working great. They have years of light left. $15 each.