Abstract: An LED coaster may include: a light transmitting cover, on the upper surface of which an object is placed; a bottom cover attached to the lower surface of the light transmitting cover; a substrate provided between the light transmitting cover and the bottom cover, having an LED mounted on a component surface on the light transmitting cover side and having a switch that turns the LED on and off mounted on a solder surface on the bottom cover side; batteries contained in a battery storage part of the bottom cover to supply electric power to the LED; two rubber pads attached to the bottom surface of the bottom cover; and a switch pad that is attached to the inside of the bottom cover in a vertically moveable manner and on which a switch pressing part facing the switch is arranged.