Inspired by printed circuit boards, the building block of all electronics, a Dutch designer has created an LED-based light installation that draws upon the familiar etching pattern inside most ...

Last Thursday I posted pictures and findings from taking apart a LED T8 tube light. This post is a continuation. The light comprises 288 diodes arranged in 18 parallel strings with 16 diodes in each ...

T2 also remains off since its base is grounded. In this state, White LED remains off. When the light falling on the LDR decreases, it cease to conduct and T1 forward bias providing base current to T2.