QTR70LF-BZ-2-24-RG is an LED manufactured by QLIGHT which contains a Signaller tower, a buzzer, a continuous light, and a blinking light. The Signaller tower is a basic three-stage light and sound alarm that can draw attention wherever it is placed. The buzzer emits an alarm sound in an uninterrupted fashion, while the continuous light emits an unvarying light output. The blinking light is an intermittent lighting effect emitted by the LED. Together, the Signaller tower, buzzer, continuous light, and blinking light offer a comprehensive alert system.