Need feedback on Viper MH light

[Josh23]

I'm looking at purchasing a Viper 150 Watt MH light.
Has anyone had any luck with these, ill be using it on my JBJ Nano Cube.
What kind of growth and colour results should I see in comparison to the standard PC bulbs.
Pictures would be great

Also if anyone has other upgraded lighting suggestions I like to hear them.

thanks for your help.