Never thought about upgrading a light, good options to have, might save people some money because we all know once you start growing, you are going to upgrade!Agreed. SF aren't horrible. I've got two SF 1000's in my tent I'm using for veg currently. But for flower I'll switch out to my HLG 260's 3000ks. The HLG's are easy to upgrade which can't be said for the mars or Spiderfarmer's.