If you’re testing old stereo equipment, a dim bulb tester can really come in handy. It’s not for testing bulbs, though, it’s a tester that uses a dim bulb to test other things. [Nicholas Morganti] ...

Improvising loads for bench-testing and designing power supplies is often a frustrating and sometimes hazardous experience. When you push large power resistors to their limit, they tend to burn ...

Leading South African energy brand Gizzu offers an excellent range of bright emergency LED lightbulbs, as well as replacement lithium iron phosphate (LiFePO4) batteries that will keep your alarm, gate ...