Extensive development of designs and prototyping of energy efficient torchiere systems using compact fluorescent lamps (CFLs) has lead directly to the production of CFL torchieres by a major US manufacturer. This paper compares the electrical and photometric characteristics of one of the new CFL torchieres to standard tungsten halogen torchieres (halogen uplighters). Power assessments and gonio...

Street lighting can be considered the main energy consumer and greenhouse gas emitter at Indonesia's city level. In addition, public street systems throughout Indonesia still use inefficient technologies, resulting in a significant portion of municipality’s operating expenditure. We conduct techno-economy analysis formulate financing mechanisms to support efficiency improvements on systems. doi...

WOLED is widely used as lighting for high efficacy and little power consumption. In this research, power factor testing between WOLED and fluorescent lamp to see which one is more efficient in consuming energy. Since both lamps use semiconductor components, so calculation of the power factor need to consider the effects of harmonics. Harmonic make bigger losses. The study is conducted by compar...

ABSTRACT Although T8 fluorescent lamp life is typically rated at 20,000 hours, it can significantly vary depending on the ballast product. The current industry practice for testing fluorescent lamp life requires these lamps to be subjected to 3-hours on/20-minutes off cycle, which is also known as the standard cycle for life testing. This method requires over 2 years of testing, which is expens...

In certain circumstances, superimposed interharmonics in the supply voltage can lead to oscillating luminous flux and cause light flicker. This phenomenon can be observed with filament lamps as well as with fluorescent lamps. Different items are dealt with in this paper: § Presentation of some experimental results: determination of the sensitivity curves for different types of lighting devices,...