An LED module comprising: a mounting board; and a plurality of LED devices arranged adjacent to one another on the mounting board, the LED devices including at least one first LED device with all lateral faces facing corresponding ones of the plurality of LED devices, the at least one first LED device including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering all lateral faces of the light transmissive member so that an upper face of the at least one first LED device serves as a light extraction face, and a plurality of second LED devices each having at least one lateral face facing at least one of the LED devices and at least one lateral face not facing any one of the LED devices, the second LED devices each including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering each of at least one lateral face of the light transmissive member facing the at least one of the LED devices so that each of at least one lateral face of the light transmissive member not facing any one of the LED devices and an upper face of a corresponding one of the second LED devices serve as light extraction faces. a mounting board; and a plurality of LED devices arranged adjacent to one another on the mounting board, the LED devices including at least one first LED device with all lateral faces facing corresponding ones of the plurality of LED devices, the at least one first LED device including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering all lateral faces of the light transmissive member so that an upper face of the at least one first LED device serves as a light extraction face, and a plurality of second LED devices each having at least one lateral face facing at least one of the LED devices and at least one lateral face not facing any one of the LED devices, the second LED devices each including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering each of at least one lateral face of the light transmissive member facing the at least one of the LED devices so that each of at least one lateral face of the light transmissive member not facing any one of the LED devices and an upper face of a corresponding one of the second LED devices serve as light extraction faces. at least one first LED device with all lateral faces facing corresponding ones of the plurality of LED devices, the at least one first LED device including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering all lateral faces of the light transmissive member so that an upper face of the at least one first LED device serves as a light extraction face, and a plurality of second LED devices each having at least one lateral face facing at least one of the LED devices and at least one lateral face not facing any one of the LED devices, the second LED devices each including a light emitting diode element, a light transmissive member disposed above the light emitting diode element, and a reflective member disposed lateral to the light emitting diode element, the reflective member further covering each of at least one lateral face of the light transmissive member facing the at least one of the LED devices so that each of at least one lateral face of the light transmissive member not facing any one of the LED devices and an upper face of a corresponding one of the second LED devices serve as light extraction faces.