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The surprising spectrum of my 70W 8000K from Aliexpress
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Note complete self-reversal of the indium line (More even than with my 14000K indium lamp) and the thermal broadening of the thallium line. There is also some sodium, which I don't know if it is an impurity from the quartz or an intentional dosage, as sodium requires the reflective coatings to rise its pressure, compared to indium and thallium.
It is just a shame that they didn't put similar dosage of thallium so its line would have also a complete self-reversal.
I'm wondering what would happen if they would put only the indium in such an amount, which CCT the lamp would.
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![The surprising spectrum of my 70W 8000K from Aliexpress
Note [b]complete[/b] self-reversal of the indium line (More even than with my 14000K indium lamp) and the thermal broadening of the thallium line. There is also some sodium, which I don't know if it is an impurity from the quartz or an intentional dosage, as sodium requires the reflective coatings to rise its pressure, compared to indium and thallium.
It is just a shame that they didn't put similar dosage of thallium so its line would have also a complete self-reversal.
I'm wondering what would happen if they would put only the indium in such an amount, which CCT the lamp would.](albums/userpics/10049/normal_IMG_7637.JPG "Click to view full size image
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The surprising spectrum of my 70W 8000K from Aliexpress
Note [b]complete[/b] self-reversal of the indium line (More even than with my 14000K indium lamp) and the thermal broadening of the thallium line. There is also some sodium, which I don't know if it is an impurity from the quartz or an intentional dosage, as sodium requires the reflective coatings to rise its pressure, compared to indium and thallium.
It is just a shame that they didn't put similar dosage of thallium so its line would have also a complete self-reversal.
I'm wondering what would happen if they would put only the indium in such an amount, which CCT the lamp would.")
