IMO...this is the reason I prefer the Deep Dome holders as opposed to the clamp lamp. Very finnicky to put together and yes, no instructions and also a pain in the rear to get them to point vertically downwards. The dome is more expensive but its simply hooked onto the hooky bit of the lampstand, job done. I do have the clamps for my halogen and my ceramic but not much choice there because of the way I have them pointing.
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