yes raise and lower your lights like any other operation although i have been seeing people leave ther lights alone and raise there growing container to keep to bugs away"seems like to much work 2 me".may i suggest if u do use 4 lamps buying wooden closet rods from the home depot.you attach the rods to the roof with chains, then notch out a little line about a half inch were your lamps hangers are,basically instead of using chains were your 2 hangers would be 2 raise and lower each lamp there are now 2 lamps resting one pole,the pole is notched so they dont slide around when u need to move them.the lights are attached to lets say an 8 foot pole.when u need to adjust your lights you simply raise one end of the pole and secure it"chains,rope,what have u"and then u would raise the the other end.its just easier than adjusting 4 lengths of chain raither than 2.if i remeber right a 600 watt uses 630 watts and a 1000 watt uses 1,300 auctual watts. i could be wrong but i think those are the correct figures for a magnetic ballast.any who:thumbsup: