The whole 'yields are better with HPS than LEDs' is a bunch of bullshit by people who do not know what they are talking about. Make sure you get quality product which this deal you're looking at does not appear to be. First of, if 5 of those is 1000W then it looks like they are 1w diodes which are too weak to do much good. Go for at least 3w diode systems. Secondly, I would never advocate buying anything from ebay, not everything on ebay is crap but many things are and you would usually not find out until you get it. And also I'm a bit skeptical that there is no details about the product. The brand 'Queenshiny' doesn't have any real reviews and if you google it you will find links to a bunch of crap for sale on ebay and amazon from lights to mink coats to other unrelated crap. Looks shady.
I've only used Diamond Series XML 350W LEDs, I would highly recommend those (they are $999 each from the maker) but I also hear good things about SolarStorm and Magnum Plus2.
Just as an example, here are a couple of photos from my grow/off between my 350W XML and 1000W HPS (you can tell which is which by the color, lol):
and
- the two grew at the same time, same nutes from the same res, same everything with the exception of the lights.
* It's
two 350W XMLs vs one 1000W HPS