Neil
lamp
The gigantic 1500W metal halide lamp I built. The bulb and electronic ballast were Ian's, I acquired everything else. A lot of it is ductwork cut, bent, and screwed together. (I really need to learn to weld. A riveter would have been nice too...) Snook also gave us an old 250W metal halide lamp to cannibalize, but ultimately we only kept part of the enclosure.
The inside is painted black, to make it more of a point light source. That makes it a lot hotter.
If we hadn't built the shade this would have lit up the entire area at Decom. It's about as bright as the setting sun, at these distances.
lamp
The gigantic 1500W metal halide lamp I built. The bulb and electronic ballast were Ian's, I acquired everything else. A lot of it is ductwork cut, bent, and screwed together. (I really need to learn to weld. A riveter would have been nice too...) Snook also gave us an old 250W metal halide lamp to cannibalize, but ultimately we only kept part of the enclosure.
The inside is painted black, to make it more of a point light source. That makes it a lot hotter.
If we hadn't built the shade this would have lit up the entire area at Decom. It's about as bright as the setting sun, at these distances.