Features AC/EM unit 3 year warranty Typically 4,500 lumens on mains AC operation, 350 lumens in emergency operation Ceiling, wall mount or suspension mounting (wall mount requires optional 45o mounting brackets) Higher wall mount classification using optional wall mount brackets Long LED life 75,000 hours Colour temperature 4,000K High colour rendering index CRI>80 Mains terminal block accepts up to 2.5mm2 cable High temperature NiCad battery for longer life External mounting clips for ease of installation Stainless steel diffuser clips High efficiency frosted polycarbonate diffuser Ambient operating temperature, AC -20⁰C to +40⁰C and EM +4⁰C to +40⁰C