Over at BoingBoing Gadgets, John Brownlee writes up an LED contact lens case, a post which can be described only as pure speculation -- Brownlee's eyes manage to achieve focus precisely once a day, at ...

The new LED Countdown light communication system from Rite-Hite Corp uses LED lights to let workers know exactly how much time there is before a high-speed door closes. The new LED Countdown light ...

This ambient LED light designed by Jasper Hou is powered by a mechanical timer in the base. After giving the base a twist, the timer gradually releases its energy, powering the LED light as it unwinds ...

Camden’s CX-DE1200 Series of Single & Double Door delayed egress magnetic locks feature both human voice and an LED countdown timer to provide building occupants with real time egress status. These ...

This simple LED driver circuit allows us to drive up to seven LEDs by using a single NiMH (Nickel Metal Hydride) AA cell. The circuit produces voltage pulses at a much higher level than the input ...