Tuesday, 23 April 2013

Week 21

Progress:


4.1.4 Dimming Options


            Originally LED lights could not be dimmed and would not work with standard dimmer switches. However, many types of Led lighting including white and RGB strip lights come in dimmable models that can be dimmed in two main ways; with LED dimmer switches or using dimmable LED drivers and standard dimmer switches. These two options offer smooth, seamless dimming from 0% to 100% brightness and that means that anyone can install conventional dimmable LEDs or even dimmable color-changing LEDs anywhere that they want LED lighting and the option to dim it.

            One of the benefits of dimmable LEDs and LED dimmers are that they use a different dimming technology than most traditional dimmers and they interact with LED technology itself in such a way that dimming LEDs has absolutely no adverse impact on the life of lights. On the other hand, dimming has little to no benefit in terms of decreased energy consumption, unlike dimming incandescent bulbs which can cut their energy usage. The other possible dimming methods for LED are by using high current rheostat or by using the PWM to control dimming.

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