Light Comparison

[bpro32]

Where do HQI, T5, and VHO, rank in respect to eachother? Is it t5, then VHO, then HQI? Also how close are VHO lights to the output of a halide?

 

[veni vidi vici]

Metal Halide Period.If used with either of the other two choices its a plus.IMO

 

[scsinet]

You ranked them in good order of performance.
T5 and halide are very comparable, and each have their advantages and disadvantages. From a T5 versus VHO perspective, a watt is a watt. A watt of T5 produces the same light energy as a watt of VHO, but the smaller diameter of a T5 lamp lends itself to dramatic increases in reflector efficiencies, making them blow VHO out of the water (no pun intended).
I'm a halide guy myself.