I appreciate your input R1b3n4, but I've already been down this road and have a clear idea of what I want to do next. HPS alone isn't ideal for my particular situation because it's a wardrobe grow with minimal extraction. I've already used just the HPS and when used continuously, it causes my temperatures to go too high, sometimes even above 30. It is the high temperatures I blame for providing the right conditions for Pythium to thrive which destroyed my last grow.
Thank you Avilax, that looks like a decent light, but I had to make my choice and order as I would like it before the end of the week. I was going to go for the 300W MarsHydro, but I couldn't get one that wasn't shipped from Germany, so I ordered the 240W model (48 x 5W) as this is shipped from within the UK and should be with me by Thursday.
http://www.ebay.co.uk/itm/MarsHydro-240W-Reflector-Led-Grow-Light-Veg-Bloom-Switches-Lamp105W-5-True-Watt-/311209384976?hash=item4875865c10
It was more important to me to get an array of 5W LEDs than to get a more powerful array consisting of 3W LEDs as I have read that the canopy penetration is much better with the 5 watters.
I would love to hear from anyone who has any experience of using one of these cheaper LED panels and has had some acceptable results.