Phase control dimmer 100-1000W for incandescent and 230V~ halogen lamps, 100-1000VA for low-voltage halogen lamps with conventional (iron core) transformer. Can be illuminated with glow unit Order No. 7758 91. For screw mounting. Fuse: T 5A/250V (H). Fuse holder already fitted with reserve fuse. For use with cover Order No. 77xx 59