https://www.youtube.com/watch?v=PtqE2iiwlBQ
A very compact version of the "Gillian's diamonds" lamp that uses a small PCB with a heater resistor physically glued to the base of the bottle with silicone for good thermal coupling, and a circle of LEDs powered via the heater resistor. Long video, so feel free to skip over the bits you are already familiar with.
Big Clive
2018-06-04 13:45:16 +0000 UTCBig Clive
2018-05-30 10:52:16 +0000 UTCGordo
2018-05-29 16:55:06 +0000 UTCMichael Thompson
2018-05-29 16:00:10 +0000 UTCKadah
2018-05-29 08:52:01 +0000 UTC