I could switch any of the 3 LED banks between off, auto or on as needed, and the moment I stepped inside into the light, it automatically shut off unless I manually overrode it.

The LED's intensity is good at V S =1.5V (equivalent to a fully charged alkaline cell) and remains acceptable with V S as low as 1V. The circuit should find applications in toys, security devices, ...

This circuit diagram joins a cell, a switch and two bulbs. ... In an LED electrical energy is almost all converted into light energy with almost none wasted as heat.

Gene expression is a fundamental of life, where each cell switches on and off specific genes. Thus, an autonomous device that could control the on-off switching would have great value in medical care.

"Short circuit in molecular switch intensifies pain." ScienceDaily. www.sciencedaily.com / releases / 2014 / 01 / 140114103044.htm (accessed June 2, 2025). Explore More ...

Make a Solar / USB LED Lantern. Aspencore network. ... through R6, which sets the LED current within safe limits. Feel free to experiment with more white LEDs — T2 can switch current up to 5 A! In the ...

WASHINGTON, Feb. 8—By harnessing quantum dots—tiny light-emitting semiconductor particles a few billionths of a meter across—researchers at the University of Washington (UW) have developed a ...

We found that the system operates as a time-delayed, digital switch, ... both high Hill exponents and time lags seem to be commonplace in the cell cycle oscillator circuit 16,17,18,35,36.