Patent ID: 8764244
Filing Date: 2014-07-01
Classification: F21K,F21S,F21V,F21Y

Abstract:
1. A module type lighting device comprising: a power supply that includes a case and a circuit board within the case; a frame; and a plurality of light modules provided on the frame, each light module being individually detachable from the frame, each light module including: wherein the light source is electrically connected to the driving circuit through the channel, wherein the driving circuit is a constant-current circuit, wherein the circuit board of the power supply includes an AC-DC converter, wherein the plurality of through-holes are arranged on the base at areas that correspond to spaces between the cooling fins, wherein air flows through spaces via the plurality of through-holes, wherein the plurality of cooling fins includes a first set of cooling fins and a second set of cooling fins, the first set of cooling fins having a lower height than the second set of cooling fins, wherein the driving circuit is provided on the first set of cooling fins, and wherein the driving circuit is provided over the first set of cooling fins without being provided over the second set of cooling fins.