Betekenis van:
lumen

lumen

Zelfstandig naamwoord

"the lumen of the intestine"

lumen

Zelfstandig naamwoord

a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

lumen

Zelfstandig naamwoord

a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

lumen

Zelfstandig naamwoord

a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions

lumen
Lumen maintenance
Lamp Lumen Maintenance Factor
Lamp lumen maintenance factor
Lamp Lumen Maintenance Factor (LLMF)
Complied class at 100 % lumen output
Lumen maintenance factor at the end of the nominal life;
In addition, these lamps are dimmable to at least 50 % of their light output when the rated lamp lumen output is above 9000 lumen.
the information provision requirements of the first stage shall also apply to luminaires for high intensity discharge lamps with total lamp lumen above 2000 lumen.
Road classes ME1 to ME6 and MEW1 to MEW6, all lumen outputs
Lamp lumen maintenance factors for single and double-capped fluorescent lamps — Stage 2
Lamp lumen maintenance factors and lamp survival factors for metal halide lamps — Stage 3
Lamp lumen maintenance factors and lamp survival factors for high pressure sodium lamps — Stage 2
They shall have at least the lamp lumen maintenance factors in Table 11:
Manufacturers of luminaires for fluorescent lamps without integrated ballast with total lamp lumen above 2000 lumen shall provide at least the following information on free-access websites and in other forms they deem appropriate for each of their luminaire models.