A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
The current lighting system is one of the big electricity usage. With the lights, human activities can last 24 hours non-stop. The higher the intensity of activities that require lighting, the energy used is also getting higher and higher. For that we need to try to save energy in lighting system. In general, lighting arrangements only use the principle on or off regardless of activity in the room. This leads to inefficient use of electrical energy. From that thought then designed to build roomfatcat:beeappg63zg57i4a4ivcojzdou