Yes, they are definitely the future as far as I can see. The main thing about them is that they are so good and so efficient that lawmakers seem to feel the need to ban everything else.

Right now there is some legislation going through that will ban 99% of LED lamps currently on the market, as well as all fluorescent tubes. AFAIK HIDs are still exempted though.

We're having a heatwave here, it got up to 44°c here last week, usually January just gets to 40 or so.

We will have tomorrow a heat wave here in Israel.

@RyanF40T12 - Deluxe Specification Series. Just GE’s brand name for triphosphor. SP for halophosphate/triphosphor blend and SPX for pure triphosphor.

I’m from Finland. It’s incredibly Cheap

"7 pcs for 50€"..  What country?

thanks.  what does Spx mean?

Next time I see such lamp at some DIY store or market, I'll pick a sample. I believe we can non-destructively test quartz presence by UV light with some certainty.

step 1 - shine some UVA.
If glowing bright blue - likely some UV-block quartz is reused here. So the lamp is most certainly quartz. Regular glass sometimes shines at UVA, but typically not that bright.
If not, check with UVC source.

step 2 - checking with UVC lamp on some UVC-exclusive phosphor like willemite.
If transmits UVC - most likely quartz.
If not - some not quartz glass.

Next, the lamp can be destructively tested by trying to melt the glass. Quartz for sure will start to melt only in the hottest flame of oxygen torch, glowing bright white.

 

Manufactured in September 1994. ‘Trimline’ was GE’s original name for their F32T8 series, used from 1987 until around 1997 when the ‘Starcoat’ technology was adopted.

Nice to see an SPX one of these too. Usually these are just SP.

Yep