Controller for lamp having more than one light source

Details Controller for lamp having more than one light source Controller for lamp having more than one light source

H - Electricity

05

B

315/72

H05B 39/10 (2006.01) H05B 37/04 (2006.01) H05B 41/46 (2006.01)

Patent

CA 1197899

ABSTRACT OF THE DISCLOSURE A controller for controlling operation of a multi-filament lamp is provided that permits selection of the filament to be energized from a control box placed at a remote location from the lamp. Only two leads are required to electrically connect the control box to the lamp. The controller automatically switches energizing power from a burned out filament to an alternate filament. The controller can also include a source of alternate power for the controller in the event that primary power is lost. The controller can also include a lock out feature which prevents switching energizing power at the control box from an energized filament to a failed filament.

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