Floyd Bell's ground-breaking new Twin Turbo™ Lighted Alarm is a small (approx. 1"x1") panel-mount piezoelectric audio alert that emits a daylight-viewable bright light when activated, effectively combining Floyd Bell's popular Turbo™ series Alarms with Turbo Light™ Series Panel Indicators into one convenient multi-sensory alarm device. Available in 7 different tone types, the sound output measures up to an impressive 103dB at 2 feet! The energy efficient, two-terminal lighted alarms operate at various voltages in the 9-30 VDC range while drawing only 50-110mA.