Help needed..witch ones???

Hey i am looking to change my lights to led but confused witch one my grow space is 176cm (h) x 70cm (w) x 50cm (d) and going use nft, but confused what led to use, http://www.plantphotonics.com/catalog/product_info.php?cPath=24&products_id=30

Or

http://www.plantphotonics.com/catalog/product_info.php?cPath=28&products_id=35

Or

http://www.viparled.co.uk/collections/series-b-1/vipar-b2x3-led-grow-light

All help is welcome

None of them. Tape a vero 18 to a cpu coolers with a mean well lpc-60-1400. You'll be much happier with a pair of those than any of the lights you listed and spend less money.

I'd go for the 90w plantphotonic in your situation.