4 ms·
Streets, offices and shops are now better lit.
by lozenge 9y ago
Streets, offices and shops are now better lit.
- deleted 9y ago[deleted]
- user5994461 9y agoOffices and shops used neon lights. It lits as well as LED or better, but consumes a lot of power.
- pfdietz 9y agoDo you mean fluorescent bulbs? They do not use neon, but rather use mercury vapor. The UV light from the mercury excites a fluorescent layer on the inside of the tube, causing broadband emission of visible light.