- Getting old: After being used for a long time, the HPS street lights will get dark and need to be replaced.
- Just being turned on: HPS street lights need time to start working. When they are just turned on, they are dim.
- Als de capacitor goes bad, the light will be dim.
- Leakage of Na will also make the lamp look dark.
Meer lezen: Hoeveel lumen heb ik nodig voor buitenverlichting?



