There are several types of dimmers generally available. Those employing triac or thyristor devices operate in a very similar fashion. These are used for resistive, and inductive loads, such as incandescent, cold cathode and low voltage (inductive) lamp sources. Note that not all electronic transformers used for low voltage lamps are suitable for dimming by triac or thyristor dimmers. Specialist...

ABSTRACT: A novel visual experiment for the analysis of the effect of different lights on the appearance of colours is presented. It could be the basis for the improvement of the Colour Rendering Index, it starts from the concept of unique hues and analyses the constancy or variations of unique hues under different real light sources. Analysed sources include incandescent lamp, a simple realiza...

With the development of technology, behavior electrical devices has also changed. This makes it clear that load model and correct identification are necessary. study presents residential loads such as incandescent lamp, Light Emitting Diode (LED) Liquid Crystal Monitor (LCD) vacuum cleaner, experimentally determining coefficients polynomial exponential model. Since measurement parameters easy t...

In this paper, we simulated series arc on electric heaters, vacuum cleaners and incandescent lamps controlled by a dimmer to analyze the characteristics of series arc that causes electric fires. A high pass filter (HPF) was designed to detect arc signal only. The HPF consists of 2-stage coupling capacitors and detection impedance, and its low cut-off frequency of -3 dB was estimated to 3 kHz. B...

In a previous publication (4) it was shown that the red portion of the visible spectrum was especially effective in inducing photoperiodic responses in long day plants when used to prolong short winter days. These responses generally included earlier flowering, increased internodal development, and a greater top-root ratio. The yellow, blue, and green regions of the visible spectrum of waveleng...

Main aim of this paper is to present the information regarding the present lighting system and to explain how solid-state lighting (SSL) can stimulate the development of the science and technology and how electricity can be saved with this energy saving, energy efficient green technology. Various methods to generate white light, advantages and key challenges are outlined in this paper. Thus if ...

The attraction of adult Chironomus salinarius to incandescent 3-W lamps of 7 different colors used in CDC traps was studied on a small island in the lagoon of Venice, Italy. An ANOVA indicated that the lamp type was a highly significant (P < 0.01) factor associated with differences in light trap catch (28% of total variation), as well as catch per lux (18% of total variation). The white lamp at...