Electromagnetic system requires ballast, ignitor and capacitor
Designed to work only in semi-parallel circuits: if ballasts with “L” in their description (e.g. BSN 100 L307…) are used, SN(D)… ignitors are required; if ballasts with “K” in their description (example BSN 100 K307…) are used, SK(D)… ignitors are required. Capacitor value to match system power can be found on lamp/ballast combination sheet