I saw this post and just wanted to give a sneak peek.... if that is OK.?? 
free range is the hardest situation when trying to properly UV your animals!
So I am working on and currently testing this telescoping stand that goes up almost 7 feet--
It has a High Power PL Arcadia UV bulb that can be adjusted to throw USE-ABLE UV out in FEET .. Not inches.
It is about 100 Uw/cm2 at 20 inches!
Or ...
it can be adjusted / toned down for closer use.
You can clip an optional dome light on the stand with a heat bulb in it too.
Still testing so it will be about a few weeks before these are ready.
They will be affordable... 160.00 or less.
There is another version on a clamp on / mount anywhere 30" SWING ARM in development too.
With optional Goose-neck add=on to give it a 42" reach.
Again...
I am sorry to jump in here --
and I didn't mean to high -jack a thread... 
But I am very excited --
my "thinking cap" has been on for many many months trying to invent, adapt and deliver a product that will get UV light easily to free range chams (and free range Tortoises too)
I really want to hit a home run and help to solve problems associated with free ranging.
Thank you!
Todd