The Tridonic EM 05 PRO G2 (Autotest) is one of the latest emergency inverters on the market. Designed to be used with linear fluorescent 21w T5 and 58w T8 with a 5 cell NiCad battery. Can be used with non dimmable, dimmable and DALI Dimmable setups. See link for all product features Tridonic EM 05 PRO G2 (NiCad) Manufacturer part number 89800203