PDD2
Pyrex Dome
The clean glass shell that is manufactured in Pyrex method which was made of borosilicate that are known for having superior thermal resistance. Therefore, Pyrex Dome prevents breakage caused by careless handling. Pyrex Dome is solely for protection of the modeling lamp, so it does not affect the tube’s color temperature or exposure when in use.
NOTICE!
When Pyrex Dome is in use, the Protection Cap(PCD) cannot be installed and it is sold separately.