Where is that black coming from? Even unable to notice the element is lit up, by using emission and black-body nod (proper light temps).

Here is my glass before using ghostman's glass shader. (text on light bulb to show mapping is good. I angled the text). With out text image map, the glass is the same color. Can never get a good clear lightbulb glass and to show element lit up.

No lights and only emission up about 200 thousand, with blackbody 2500 temp. Unable to see element lit up bright orange (nothing). The exhaust tube is not showing up as glass. Just black glass, or what ever black.