New European regulations mandate that within 5-7 years new buildings will be near zero emission. Lighting is a major energy user in commercial and domestic buildings alike, and these regulations have ...

Proposed changes to the ASHRAE/IES energy standard would require automatic lighting controls in more space types and shorten the times before lighting is automatically reduced or shut off. The changes ...

Prehistoric man used primitive lamps made from naturally occurring materials, such as shells, horns, and stones, to illuminate his cave. Commonly filled with grease, these lamps had a fiber wick that ...

Manual switching of outdoor lights in houses or roadways can be sometimes really inconvenient especially when we are far away or still at work. Sometimes this becomes an opportunity for thieves to ...

This automatic park light switch with LDR automatically turn ON the light when the surrounding light dims to a preset level. The first circuit diagram is an NPN design intended for negative grounded ...