| 摘要 |
PROBLEM TO BE SOLVED: To efficiently radiate heat of a lamp through heat radiation fins.SOLUTION: An LED lamp 1 includes a plurality of light source units 13 each having a mount substrate, mounted with a light emitting element, on a top surface of a base 22. The plurality of light source units 13 are arranged at a periphery of an axis C of the LED lamp 1 with reverse surfaces 22d of respective bases 22 in while leaving a gap G1 with each other, and heat radiation fins 29 arranged obliquely to the axial direction of the axis C are provided on the reverse surfaces 22d of the bases 22. |
