The electricity consumption of households from all over Brazil is growing and it is known that lighting accounts for a good part of this demand is why there are encouraging the creation and use of more efficient lamps such ...

The use of light emitting diode (LED) lamps for ambient lighting has been increasing in recent years due to energy efficiency, durability and luminosity tests. However, there are few comparative studies related to the ...

This paper was developed having as object of study the street lighting of Peabiru, placed on Paraná. It aims to compare and evaluate the luminous efficiency of high pressure sodium-vapor lamps and LED’s. The evaluations ...

This work presents the study and implementation of a LED bulb driver for residencial purposes. Initially, the basic concepts necessary for the comparative study of LED lamps with the other forms of residential lighting are ...

The high power LEDs are devices in large rise in the lighting market, these devices already demonstrate condition of replacing incandescent and fluorescent. As characteristics main of these device stand out the life ...