Emergency preparedness is an aspect of building operations that is often overlooked until an imminent situation is looming. In the aftermath of Hurricane Sandy in the Northeast and similar ...

Described is one USB-chargeable Emergency Inspection Light for in-lab use, wired around a hi-efficiency 5mm-white LED. The power-bank of this circuit is a 1F/5.5v (yes, 1 Farad!) super capacitor. Just ...

An emergency light refers to a battery-backed lighting device operated automatically and self-powers when the main power supply is cut and normal light falls. The primary power supply damage can occur ...