converter cigarette lighter plug adapter DC 12V Power Supply 12W–36W, AC 100–240V to 12V Transformer, Car Socket Charger for Pump, Cooler, LED Lights — US Converting 100 USB Cigarette Lighter Adapter -
Description
The calories in vape liquids are negligible due to the vapourization process, and cigarettes, although containing trace calories, lose most of them during combustion

Some manufacturers even made devices that physically burn combustible cigarettes

Also see a blue version on our site from same source

By the early 1980s, the industry was a sprawling hodgepodge of small, inefficient, state-owned factories
