elp IM428 16 21 28w 2D Combo Emergency Ballast
An Emergency Lighting Products (ELP) IM428 emergency combination ballast to run 1 x 16w, 21w or 28w 2D compact fluorescent lamp. This integrated combination ballast should be used with a 4 cell emergency battery. This ballast has a high quality electronic ballast and emergency inverter within the same enclosure.
