Avoid LED flashing or afterglow
Do you know the most common causes of flashing or afterglow in LED lamps and LED fixtures? What many people don't know . but should know: Most LED light problems do not occur because of poor quality or poor grade. Rather, in most cases a malfunction has to do with certain conditions in the environment of the LED lighting. There are various causes that can lead to faults in LED components, LED lamps or LED luminaires:
Possible cause 1 - Residual voltage
Residual currents occur in upstream devices with electronic switches that switch LED lamps, e.g. current impulse switches, motion detectors, timers, twilight switches, etc.!
Explanation: The built-in electronic components do not break the circuit cleanly, as there is no 100% galvanic isolation. Despite an open switching contact, a residual current flows which can cause the LED illuminant to afterglow or flash.
Possible cause 2 - Induction voltage
Induction voltages can cause afterglow and flashing of LED illuminants in the respective circuit.
Explanation: In installations using cables with longer conductor lengths, where the live wire (L) is directly adjacent to the neutral wire (N), inductive voltages may be applied to the neutral wire even if the installation is correct.
Explanation: The same problem can occur if several LED lamps are installed in a circuit. The internal electronics can induce voltages and feed them into the supply network.
Possible Cause 3 . Glow and indication lamps
Glow lamps in switches or pushbuttons of the respective circuit can cause LED lamps to glow.
Explanation: Glow lamps are connected in parallel to pushbuttons or switches and thus bridge the switch. The circuit is therefore not cleanly interrupted and there is a constant flow of current. This current excites the electronics of the LED illuminants and makes them glow.
Solution:
RC suppressors (capacitors 0.1ƒÊF with resistance 100 Ohm) dissipate induction voltages and residual currents and thus clean up the network in the respective circuit. Our experience over the last few years shows that the majority of all system-related faults in LED lamps can be avoided by using RC suppressors!
