An LED module includes a first protrusion and a second protrusion adjacent to the first protrusion arranged on an insulating surface, a first electrode arranged on the first protrusion, and a second electrode arranged on the second protrusion, and an LED chip arranged on upper sides of the first protrusion and the second protrusion. The LED chip is connected to the first electrode and the second electrode via conductive members, and the first protrusion and the second protrusion are insulative and have a height of 1 μm to 50 μm.