recercare and Ted the Led,
Sorry to say, but the 2001 is a one-piece only unit.
To answer recercare's question first,
Yes, you MUST use it with a seperate head and battery connected by a cable.
You cannot join them together.
The only "joinable" lights are the 2002 and the 2004 (If you look at these pages, they have a small diagram that says "complete modularity").
But the 2002 is a 7.2V light, the 2004 is a 24V light.
The solar heads are only for use with 12V lights.
Ted, the tiny pictures in the right hand collumn mean that you can use the 12W HID bulb, and the 4100K HL halogen bulb.
Unfortunately for the 2001, this does NOT mean that it is modular.
It simply means that you can get the 2001 with the aformentioned bulbs installed.
Hence the 3 different models for the 2001 -- The Halogen, the HL, and the HID.
Notice that the HL head is longer than the other two.
Also notice that the Halogen and HL can use the 5°, 15°, and 110° reflector, but the HID model only has the option for the 13° and 90°.
Remember, the 12W HID only has those two reflectors available.
The 30 and 66 W HIDs however, have all three of the normal reflectors.
About your request using the 2001 100W to shoot outdoors.....
As I mentioned before, I don't have the 5° reflector. I only have the 15° and 110°.
The shots you saw on my posts were using the 15°.
I can't promise anything, but maybe I will try to do something like that and post the pics at a later date.
Hope this helps.
BTW, does anyone know where Kogatana is? He was waiting for this review as well, and still hasn't commented at anything at all.
Kogatana?
Are you out there?