At present, according to the principle of lighting, it can be divided into incandescent lamp and gas discharge lamp
UV irradiation can be generated by gas discharge lamps
emitted from a microwave or an electrode system.
The current worldwide trend of replacing gas discharge lamps
with solid state lighting, such as LEDs, will affect the radiance and spectrum of urban skyglow," he said.
Unlike typical gas discharge lamps
, the semiconductor LED contains no mercury - a hazardous waste material, produces no ultraviolet radiation, and no EMI (electromagnetic interference) emissions.
Following items are not included in the contract: batteries (bebat), and gas discharge lamps
(recupel) and reusable toners.