Sunlite 25 Watt T8 High Performance Straight Tube, Medium Bi Pin Base, Neutral White Commercial 5VDC• Charge most compatible electrical BULB_M 5VDC• Charge most compatible electrical device directly without an adapter• Tamper Resistant Shutters provide compliance with 2011 NEC Code• Replace a standard duplex receptacle• Back and side wire for easy installation• ETL Listed and FCC Approved These lamp utilize a single and double coat phosphor system Fluorescent lamps can cost significantly less to operate over their lifetime than incandescent lamps Fluorescents lamps are used so widely due to their low operating costs and because they are efficient