He previously hacked a bunch of these inexpensive LED bulbs last month, discovering they all shared a similar circuit topology. All the ones he experimented with drove the LEDs hard, something ...

Instead of simply replacing the outdated bulb, we decided to build a small dark detecting circuit with 2 yellow LEDs based on this Evil Mad Scientist Laboratories design. After successfully ...

LED lights typically last far longer than their incandescent predecessors. If your bulbs are failing early, these are the ...

In a series circuit, the current passes from the power ... Next in line are the LED light bulbs. They're fed into the machine and tested for positive or negative charges. Then, the metal ends ...