I needed a simple LED indicator showing that a particular voltage level had been reached—specifically, that a capacitor had charged to a particular potential. I was convinced that there must be a way ...

The Dual Icon 14 mm panel-mount LED indicators from APEM are bi-color indicators designed to provide dual-state visual ...

APEM's Dual Icon indicators use green and red filters combined with vivid LED lighting to produce a 120° viewing angle.

This LED DC voltage indicator circuit is a voltmeter, rather than simply a battery tester. As such it may measure voltages as low as 3V. It utilizes venerable LM741 operational amplifiers applied as ...

Want to control your lights and appliances from anywhere? These budget smart switches make daily routines easier and more efficient in 2026.

They are rated IP67 (NEMA-4 and 13) against dust and moisture and can be used in hazardous environments. Features include lenses in anodized aluminum with illumination windows, or with plastic ...