just looking into,, not ready to buy yet
just lookin into it askn how it works, for right now
Well if you look at the coverage , 120cm x 60cm for one of those mars ts 2000s , your looking at 4 of them to properly light up a 8x4.
Which comes in around $1000, still works out expensive.
If your up for it you could build a light to replace your HPS and get it done a lot cheaper, though still would seem expensive in comparison to HPS.
Maybe have a look at LEDgardeners strip builds over on his site if you fancy learning more.
Or maybe consider looking into CMH lighting, thats kind of half way between LED and HPS as far as price point.
Though im sure all the CMH guys would argue it beats LED.
Its all going to depend on how much of that space of your you want to light up as to what might be best i think.
End of the day i imagine your HPS still grows weed like it always did.
I can tell you this though, to save you going through the pain of wasted investments, there are no magical lights for dirt cheap that will beat a HPS with only a quater of the power consumption.
Best we can do is knock of 30-40% of the power consumption and heat.
If your in no rush i would recommend doing a bit of reading and building something yourself buying parts when you can afford.