lamps discharge radiation term

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Current under the influence of the electric field of charged particles in gases or vapors, and migration and flows through the region of the gas or vapor. Fluorescent lamp, the electrode is the emission or absorption of electrons of the metal filament. The negative electrode (cathode) negatively charged free electrons absorbed by the positive electrode (anode) current and the arc between the two poles.

Discharge lamps
Directly or indirectly, through the gas, metal vapor or a variety of gases and vapors in the discharge of the mixture to get the light output of the light source.

Peak intensity
Light source or lamps in a given direction on the maximum led ceiling lights intensity.

Peak factor (crest factor of lamp current)
outdoor light fixtures ratio of the peak current and RMS (root mean square value) or average operating current.

Radiation
Launch or transfer of energy in the form of electromagnetic waves or particles.

Radiated power
Forms of radiation emission, transfer, or receive power. Unit: watts, W

Radiation energy (Qe, Q)
Forms of radiation emission, transfer, or receive the energy. Unit: joule, J

Radiation efficiency (ηe)
The flux of radiation emitted by radiation source (power) and consumption of power ratio.

Irradiance (Ee, E)
Received radiation energy in a specified unit area on the surface. Unit: W/m2