Interesting watching the mercury 'dancing around' the tube! I noticed they were all attracted towards the far end of the arc tube guess this is the 'anode' end?
Metal halide lamps are one of my favorite lamp sources. Especially when warming up and watching the lamp shift colors as various salts vaporize, and the fact colored metal halide is available in green, blue and magenta for example, and in various CCT, from about 3000k to over 14,000K depending on the mixture of salts. Green metal halide is good for fishing. It would be really cool to be able to rent an HMI fresnel, they are a favorite in the film industry and come in sizes up to 24,000 watts, 2,300,000 lumens , roughly equivalent to a carbon arc search light popular in the first half of the 20th century before HMI and xenon short arc took it's place.
Oh they are glowing yellow hot! It's just that you can't really see it with the exposure needed to view the arcstream. When you kill power to the lamp, the glow from the electrodes is actually quite bright for several seconds!
@@FrontSideBus I used to run a moth trap at a local nature reserve, it doesn’t kill them they just land in the vicinity and you can look at them and record them etc.. although that being said we used to use 250w mercury vapour so I’m not sure what they’d think of 2kw 😂. It doesn’t really matter what light you use as long as it has the uv from the mercury (not uvc obviously). Also I should add that we used to get a lot more than just moths
@@TheCORC964 It certainly would be interesting to see what turns up. This thing certainly gets a bit warm and I reckon if they got too close then they'd get smoked lol.
