Patent ID: 9232597
Filing Date: 2016-01-05
CPC Classification: H05B

Claim Text:
1. A lighting device configured to be connected to a light source device selected from predetermined two or more light source devices, the lighting device comprising: first and second power feed terminals between which a light source of each light source device is configured to be electrically connected; a power supply circuit that has high potential side and low potential side output ends electrically connected respectively to the first and second power feed terminals and is configured to output a DC power across the first and second power feed terminals through the high potential side and low potential side output ends; a control circuit configured to control the power supply circuit; and at least one identifying terminal for identifying a rated current of a light source of each light source device, wherein the control circuit is configured to identify a rated current of a light source connected between the first and second power feed terminals by detecting whether the identifying terminal is in floating state or not, and to control the power supply circuit so as to supply a current corresponding to the identified rated current to the light source through the first and second power feed terminals.