The last listing has been up since at least 2016 with the last purchase looking to be 2018 so you should try to make an offer of $7 and see what happens !

That Sylvania is a good lamp for the time being, Lifeguards regrettably are more expensive than they used to be… but good deals to show up. It requires patience.

Those Lifeguards are pretty pricey, but that third Sylvan seems like a good deal.

Thank you both for your kind messages!

@LightsoftheWest, will surely keep that in mind! At the moment it seems I have the fixtures selected. (Alexandria - Restored Radial Waves with 1 RUL. Bayville - Black colored Cree Traveyo lights in 2700K) While Alexandria is set in stone, Bayville has more wiggle room so if anything changes I will let you know!

Temperature dropped from 25°C to 6°C that day (77°F to 42°F)

I can't see those links, so don't know what's there.
but can say 42F is too warm for graupel.. it really needs to be close to (or below) freezing for that to fall. (and within the cloud there must be a layer where water gets below freezing, but not enough that it freezes...until it encounters a falling partially-formed snowflake, when it does it freezes instantly to that, forming a somewhat-soft white ball). Interesting stuff, & kinda cool to see when it happens.

You no doubt had a coldfront come through that day with with a temperature drop like that.
I'm guessing you had a line of convective storms along the coldfront, and strong enough updraft within them for hail. Not uncommon at all for that to happen(atleast where I'm at). Storm doesn't have to be severe to produce small hail (half-inch or less)

(There's also something called 'ice-pellets' (or 'sleet') which look like tiny hail...but are formed differently than hail, and requires below freezing)

How about these lamps?

See here:

https://www.ebay.com/itm/155720764006

https://www.ebay.com/itm/296338181053

https://www.ebay.com/itm/374916603711

https://www.ebay.com/itm/152157615402

@ Tim - All our sockets are RCBO protected at the consumer unit (breaker panel) rather than at the sockets themselves.

Something like a Lifeguard or an EYE. Preferably coated but clear is also good. I also don’t really want to spend a ridiculous amount of money on it.

Is that really considered to be hail? Or is it graupel? Hail is typically associated with severe thunderstorms. Graupel and sleet normally fall
during cold enough conditions. Hail is normally bigger than both sleet and graupel.

I didn't know that word
Temperature dropped from 25°C to 6°C that day (77°F to 42°F)

Is that really considered to be hail? Or is it graupel? Hail is typically associated with severe thunderstorms. Graupel and sleet normally fall
during cold enough conditions. Hail is normally bigger than both sleet and graupel.