The LED bulbs that were tested were the closest to their advertised values, drawing 2% and 3% more power than expected. The LED bulbs make use of a lot of circuitry inside, causing a similar power ...

That's because the LED bulb isn't technically drawing in 100 watts of energy when put into a 60-watt-maximum fixture. Instead, it only uses between 12 and 14 watts on average, with some coming ...

Building a portable lamp with a 9V battery and LED bulb is a simple, creative DIY project that anyone can try. This video provides clear, step-by-step instructions for assembling a functional lamp ...