I do the same thing as posting http://www.mallorn.com/lists/veggies/oct97/msg00006.html but I have 6 light and two on each shelf. The wall are protected by styro insulation and a foil insulation in front. I place sheet of plastic on top of my flats. My lights are 6 inches from the flat. There was a article from Fine Gardening which describe how to make this propagation stand. -- Duncan McAlpine, Federal Way, WA m*@eskimo.com Why buy plants when you can grow them yourself.....? http://www.eskimo.com/~mcalpin/ http://www.eskimo.com/~mcalpin/pumkin.html