Stop dimmed lights flickering. Dimming energy-saving lights is complicated – there’s a lot of different technology built into modern bulbs. That’s why dimmed lights sometimes flicker or remain on – power trickles through. Bypass works with Nano Dimmer to remove the signals from your power line that cause low-watt lightbulbs to flicker. Bypass invisibly installs near your light fitting taking up next to no space at all.