Lighting expert since 1979
60-day money-back guarantee
4.96/5
Log in Shopping bag

Light Current Preservation

Luminous flux maintenance, also known as lumen depreciation or lumen retention, describes the decrease in the luminous flux of a light source over its service life. Over time, every light source loses brightness, whether due to aging of the light source, soiling of the cover, or material fatigue. Luminous flux maintenance is expressed as a percentage of the original luminous flux; for example, L70 means that the light source maintains 70% of its original luminous flux.

This process is particularly important for LEDs, as their long service life often involves a slow, gradual decline in brightness rather than a sudden failure, as is the case with incandescent bulbs. High luminous flux maintenance is a hallmark of modern light sources and is taken into account in lighting design to ensure that spaces remain adequately lit even after prolonged use. Regular cleaning and maintenance can also help maximize luminous flux maintenance.

Eine Gruppe fröhlicher junger Menschen lächelt gemeinsam in einem sonnigen Park.

Become part of the skapetze® Membership

Collect points, discover new items, and enjoy exclusive benefits