Ltpgtthe led t8 serial lamp is designed exclusively for easy replacement of fluorescent lamps in a serial connected light fitting with a magnetic ballast these lamps must be used in pairs wired in a serial these lamps are designed for safety with live and neutral placed at the same end easy installation no rewiring required for fittings with magnetic ballastltpgtltulgtltligtsave up to 65 energy compared to fluorescent tubes with magnetic ballastltligtltligtlong l