Well now my grow is getting towards its end I must comment on how happy I am with my new Invisible Sun 150 Quantum Board LED. My plants and more specifically my Buds are defo bigger harder and look more colourful with very bright purple hues mixed with green and orange. It has also helped with temps and humidity in my very small tent, but that is not important with this strain as it is very tolerant to changes in temps and humidity. I still like HPS bulbs and I won't knock them but with a maximum tent height of 160cm (63 inch) the HPS with a reflector would not leave much height space so the LED is great as it is only 1 inch in height which then obviously leaves me with more height space to work with...........Happy Days Peeps!