A lighting quandary........

[Ambrose]

Long time lurker, first time poster.

Hi All,
All my orchids are settled indoors (I live in the mid-atlantic region) for the colder months.
I have a mixed collection, some of which reside in an enclosed habitat with T-5 lighting fixtures. The rest of my collection has to make-do with available south-west natural lighting.
The natural light during the short days of winter is sadly lacking. Indeed, these plants are pretty much scraping by until late May.
I want to supplement the lighting for these plants and have narrowed my choice down to two systems.
I could hang another T-5 fixture with eight, four foot, mixed 3000K and 6500K tubes for a nominal lumen output of 40,000.
Or, I could hang an Adjust-A-Wing reflector with a 400Watt ceramic metal halide lamp with a nominal lumen rating of around 38,600.
The HID route is more expensive by $60- $80, and is uncharted water for me as I have been relying on T-12, T-8, and more recently, T-5 lighting.
Any input would be great.
Ambrose.