The Liteplan HRN 4 Conversion Kit is a 3hr emergency lighting conversion kit suitable for 4-58w fluorescent lamps. This unit is to suit multiple 4-pin fluorescent lamp wattages and circuits. 4-pole change over relay plus additional 5th pole for HF ballast isolation. This conversion kit has these additional benefits :- 4-pole changeover relay, Additional 5th pole relay, Deep discharge protection, Low profile enclosure, Constant current charger, High temperature niCd cells. The HRN range is supplied in conversion kit form. They are supplied as standard with the following parts :- 500mm Green charge healthy LED indicator and mounting collar, 3/4/5 Cell kits are supplied with NiCd batteries and AMP irreversible battery connector.