@Squonk
It really looks terrific
Well, got into the idea of building a halo powered log mainly inspired by the MUSA wooden vape
http://fuckcombustion.com/threads/musa-wooden-vape.23239/ at the time, which was more meant to be a cross between a log body and a Cloud Evo, originally. It used a 50w bulb at first and later on a 35w bulb. Started out also experimenting with a 35w at first, but soon switched to building more traditional resistor- and cartridge heater based logs, which utilize quite small heaters (about 6mm x 20mm) and produce nice fat vapour with just 7w to 7,5w already.
With the 35w bulb which is about 12mm in diameter, I needed at least a 3A PSU, wider glass heater covers (used a 19/26 male cone tube here, 13mm inner diameter, 17mm outer diameter), which lead to larger and more massive bodies and thereby also more heat loss through conduction to the body, requiring even higher temps and therefor increased brightness
So I put the idea on the back burner and it was only through
@brainiac 's attempts to do a halo Rustic log, that I revisited the idea recently. With the discovery then, that the 20w bulbs and lower are only 9mm in diameter, this opened up the possibility to set the bulb into a more common sized log body and the use of a 11mm/10mm OD/ID steel heater cover, which solved several problems at once, re brightness problems and also compatibility to off the shelf options for roasting tubes and WPAs, as the 10mm Vapcap Ti/ss tips worked for sliding into the core and the all glass stems and GonGs from the Arizer Solo/Air worked for sliding over the core
You can also get 10mm OD borosilicate glass straws in 6/8 or 10 packs for just a few quid, to also serve as slide in all glass roasting tubes.
Then I found, that I still needed to turn up the 20w bulb to maximal 1/2 power, to get very good results already (around 8w), so that I moved to a 10w bulb next. Works very satisfactory right now and I've still about 2w in reserve, if I need even more power. With the 10w bulb, I also can go with the smaller wall wart 12v/1,5A PSU units now, I use for my other log vape projects, as it'll draw a maximum of just ~0,84A now
The end result was the recent steel core Halo Misty then, you saw in my thread already
It's a mere 4cm x 9cm in size now and due to a bit of folded up ss fine mesh foil placed within the small basket screen, I use for a debris screen, also not much brighter than a night/mood light even at full vaping temps:
Care to elucidate a bit more on your specific heater setup there?
Is this a steel heater cover/tube we see there?
Do you use an off the shelf ceramic socket for the bulb?
The (very nice) cooling stem slipping over the heater port, I guess?
Are you using mains power there (judging from the plug)?