|Carbon arc lamps consist of two carbon rod electrodes in open air, supplied by a current-limiting ballast.
|Compact Fluorescent Light
|Fluorescent is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.
|A discharge lamp has a glass or silica envelope containing two metal electrodes separated by a gas.
|Fluorescent lamps consist of a glass tube that contains mercury vapour or argon under low pressure.
|Halogen lamps are incandescent lamps that use a fused quartz envelope filled with halogen gas
|Incandescent light bulb, a heated filament inside a glass envelope
|LED lamp, a solid-state lamp that uses light-emitting diodes (LEDs) as the source of light