Can Mason Jar lamp shades overheat?

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Yikes, internet prices for that lamp seem to be £12-£16 !
I can get decorative tungsten for £5-£8

Better to speak to wholesalers really lol. Those have been running 60+ hours a week from either December or January (was speaking to Owner and neither of us sure just when), no failures to date out of around 40 lamps. They own another premises nearby and we changed those at the same time (only a handful of them there) as they had to replace them often.

As a feature light they may be ok, but at 1800K they are far too Orange for me, it's almost like a street light has invaded the place lol.

 

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I've liked the Mason jar /Kilner Jar lamp shades a while & they are extremely easy to make, especially after I saw one at £50 & the jars are £2-£4! It simply needs a Lamp adaptor lid switched for the inside removable disc of the 2 part preserving jar lid. So these pics show what I'm on about. My question is, is this type of lampshade safe? As a preserves jar it is pretty much air tight so could bulbs overheat? Is there a certain type of bulb to avoid for this type of use given there's so Many different types of bulbs today?! Shape wise I think candle bulb best but here because I want to do this safely with guidance from those who know
Many thanks

I'd ditch the standard pendant and get a brass lampholder, some decorative braided flex as well. It will cost a little more but will look a lot better. Holes for airflow a must whether you use LED or Filament imho