The LED-EM® Twin Spot offers simple and effective emergency lighting from high efficiency LED projectors. The Twin Spot units feature a novel lens system offering fine optical control resulting in high intensity beam patterns to ensure effective area illumination. The 6 Watt projector heads provide excellent performance. Supplied with 3.6 Volt 4 Ah NiCd batteries. Note:  For Self-Test, use: LDE360733LED-EM-TWINSPOT-S NM E3/DALI NB Simply connect the 230 Volt power supply only. Features Non-maintained 3 hour duration Power consumption 4 Watt when charging 190 luminaire lumens per circuit watt Wireless version available Polycarbonate housing and heads 2 x 380 lumens IP20