Why LED stays on?

Published: 6.2.2023

Modified: 28.2.2025

Reading time: 7 minutes

Author name: Janne Halttu

Summary

Lamps can glow after being switched off for several reasons
Led drivers store energy, causing a glow afterglow
Poor quality light bulbs and faulty wiring can cause problems
Switches and dimmers can leak current, causing glowing
Solutions include wiring checks, zener diodes and high quality lamps

Janne Halttu

Janne Halttu Owner

LedStore.fi entrepreneur who has built 4 detached houses and renovated several properties. 20 years of construction experience has given me a lot of knowledge about structures, and electrical work for several houses. I have worked with LED lighting for over 10 years. I am an expert in Led lighting, I write articles and I am a lighting designer. I often help clients with electrical and structural issues related to lighting and house construction.

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Summary

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