Simple light solutions for temporary indoor growing?

[NewBloom]

This is my first winter growing orchids. My collection is mixed and small--17 plants--most are phals and all grown outdoors.

Our winter has arrived earlier and colder so I've had to bring in the phals often over the past 2 weeks. Several of them are in spike or are ready to bloom. Quite a few of the other plants are in growth and I'm concerned that moving the plants in and out for weeks at a time will disturb their progress. There's not enough natural light in the home.

I'd like to get a lighting set-up going and move the orchids to a small office for a few weeks. This is a temporary fix, so I want to keep the cost down and avoid an elaborate lighting system because I'd only use it one season a year.

I've been pouring over old threads and it seems like people use a variety of light sources. I'm confused.
I've even read that someone made their phal happy with a simple desk lamp and light bulb. If so, then I'm all over it.

Would a task lamp and household CFL bulb work?

I'm looking for a simple but effective solution for the lighting and humidity. Your advice is appreciated.