Bosch LBC3951/11 Ceiling speaker 6W ( Metal mask) IP64 F.01U.004.660

160 mm (6.30 inches) Maximum thickness 95 mm (3.74 inch) Ceiling thickness 9 to 25 mm (0.35 to 0.98 inches) Installation cutout 145 mm (5.71 inches) Speaker diameter 101.6 mm (4 in) Weight 690 g (1.52 lbs) Color White ( RAL 9010) Magnet weight 101 g (3.57 oz) Working temperature -25 ºC to +55 ºC (-13 ºF to +131 ºF) Storage and transportation temperature -40 ºC to +70 ºC (-40 ºF to +158 ºF) Relative Humidity <95% F.01U.004.660 LBC3951/11 6W Metal Mesh Ceiling Loudspeaker, IPx4 Malaysia CN: 129.00 258 LBC1256/00 Ceramic Connection Adapter Emergency connection adapters, 3-pin screw ceramic connectors with pre-installed thermal fuses, can be connected in series with the 100 V main connection line of the loudspeaker unit (set of 100). Business type: LBC1256/00 Product number: F.01U.505.935