Individuals are recognized to get a place which is four-feet tall in two months under any of these lamps. Underneath the VHO lights, one may have to lift the lights every day which means a growth rate of ate least two inches a day. The single drawback is the expense of the VHO lamps and fittings. The VHO lamps and fixtures are nearly twice the standard's purchase price. They are well worth our opinion if you are considering it.