Why do the LED lamps blink in the new building?

In changeover and push-button circuits, the lamp conductor lies parallel to the live conductor in the cable. This induces voltage in the lamp conductor (when switched off). This small voltage/power is enough to cause the LED to flicker or glow faintly. Branded light bulbs have a built-in component that prevents this.

In changeover and push-button circuits, the lamp wire runs parallel to the live wire in the cable. This induces voltage in the lamp wire (in the off state). This low voltage/power is enough to cause the LED to flicker or glow weakly. Branded light sources have a component installed that prevents this.