| 摘要 |
PROBLEM TO BE SOLVED: To provide a newly configured LED lamp or the like capable of corresponding to a reduction in weight without incurring an increase in size of the LED lamp and an increase in heat load of a lighting circuit unit.SOLUTION: A lamp comprises: a base 3 for receiving power; a cylindrical case 5 of which one end is attached to the base 3; a pedestal 7 for covering the other end of the case 5; a plurality of semiconductor light-emitting elements 23 mounted on a main surface on an opposite side of the pedestal 7 to one end of the case 5; a globe 11 that covers the plurality of semiconductor light-emitting elements 23 and is attached to the other end side of the case 5; and a lighting circuit unit 13 that is accommodated inside the case 5, receives power via the base 3 and lights the semiconductor light-emitting elements 23. The case 5 is formed of a resin material. The lighting circuit unit 13 supplies a current having a current value not greater than a current value in a forward direction in which a junction temperature of the semiconductor light-emitting elements 23 during rated lighting is 100°C to each of the plurality of semiconductor light-emitting elements 23. |
