The arc of my no name 70W green thallium lamp
The arc looks significantly different than that of my former Venture MH-DE 70W/UVS/GDX lamp. Probably due to the much shorter arctube. Also, there are much less liquid thallium when hot.
Picture of the arc of my former Venture MH-DE 70W/UVS/GDX lamp:
[url=https://postimg.cc/Fkj92PqL][img]https://i.postimg.cc/Fkj92PqL/IMG-7381.jpg[/img][/url]

The arc of my no name 70W green thallium lamp

The arc looks significantly different than that of my former Venture MH-DE 70W/UVS/GDX lamp. Probably due to the much shorter arctube. Also, there are much less liquid thallium when hot.
Picture of the arc of my former Venture MH-DE 70W/UVS/GDX lamp:

IMG_8240.JPG IMG_8250.JPG IMG_8259.JPG IMG_8277.JPG IMG_8299.JPG
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dor123   [12 May, 2024 at 02:40 PM]
Picture of the arc when the floodlight pointing forward (Tip not point upward):

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