1.2m x 1.2m Complete HPS Grow Tent Kits1. 2. m x 1. 2m Complete HPS Grow Tent Kit Searching for a really affordable HPS setup? One of these Grow Tent Kits will do the trick! Choose between magnetic and digital 600W ballasts (the latter are more energy efficient, helping to save money), and our two biggest selling extraction kits. You can't go wrong! Please note: Components occasionally have to be purchased to order, as such local collection stock may differ. You get: 1 x 1. 2m x 1. 2m x 2.