The SLS0281FR1A1GD is an LED segment display with 1 0.28-inch (7.11mm) common anode, red SMD and RoHS manufactured by SUNLIGHT. The display has 7 segments that provide a single digit numeric count for display purposes. The device has an ultraviolet light index protection rating of UVA, UVB, and UVC, and a visible light index protection rating of V3. It has a reverse voltage of 2V, with a forward voltage of 1.8V to 2.2V. The working temperature range is -40 °C to +85°C. It also has an insulation resistance of over 100MO (at DC200V). The device consists of a lamp board, a reflect ceiling, and a driver IC.