Linear tube lamp cathode macro photograph. The same type of tube usually used in fluorescent lighting, but with a clear outer jacket. Closeup, macro

---

Size: 6000px × 4000px
Photo credit: © Callum Fraser / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: blue, cathode, closeup, discharge, gas, germicidal, hot, internals, lighting, linear, macro, mercury, pressure, spot, striplight, tube, view