external lighting

Plasma lamps are a type of electrodeless gas-discharge lamp energized by radio frequency (RF) power. They are distinct from the novelty plasma lamps that were popular in the 1980s.
The internal-electrodeless lamp was invented by Nikola Tesla after his experimentation with high-frequency currents in evacuated glass tubes for the purposes of lighting and the study of high voltage phenomena. The first practical plasma lamps were the sulfur lamps manufactured by Fusion Lighting. This lamp suffered several practical problems and did not prosper commercially. Plasma lamps with an internal phosphor coating are called external electrode fluorescent lamps (EEFL); these external electrodes or terminal conductors provide the radio frequency electric field.

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    Total loss of external lights whilst driving in the dark! - 12 volt battery failure indicator

    Anyone lost lights whilst driving? I was driving in the dark (thankfully on a lit stretch of road) when my headlights & I think other external lights went out, & stayed out. I'm not sure what the dashboard indications were at the time (I had bigger things to think about - like seeing where I was...
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