It is important to note that all quality branded halogen capsules incorporate a fused link to protect the circuit in case of a short within the lamp. The first indication of this happening is an increase in noise, often heard as a buzz from the dimmer switch.
This arcing creates an additional load on the dimmer and can overload the module resulting in excess heat and premature failure. This is not dangerous in any way and is a characteristic of halogen lamps. GU10, G9 and GZ10 halogen lamps and capsules tend to arc in the latter part of their life. These wattages must always be adhered to and in the case of halogen lamps and capsules must be over-rated by at least 25%. It is important to note that they also have a minimum load requirement of 25w, 40w, 100w and 150w respectively. They are commonly available in 250w, 400w, 600w and 1000w modules.
#Do you need a led dimmer for led lights drivers#
They are also used to dim most electronic low voltage transformers, including wire-wound or toroidal transformers and can also be used to dim constant current dimmable LED drivers under certain circumstances that will be explained later.Īll dimmers are rated by wattage and leading edge dimmers are no exception. Leading edge dimmers are the most commonly used to dim incandescent and mains voltage halogen light bulbs and capsules. If you mistakenly connect too many lights or transformers to an an intelligent dimmer it will protect itself from failure by turning the lights down or off until the load is corrected. The best of these are marketed as ‘intelligent dimmers’ and feature soft-start and overload protection to improve the life span of both the lamps and the dimmer. Leading edge dimmers are compatible with resistive or inductive loads and are able to reduce the load by shortening the A/C cycle at the leading edge of the input waveform, hence the term ‘Leading Edge’. Types of Dimmers Resistive Dimmers (Leading Edge)
If you select the wrong type of dimmer it may not work, could lead to reduced lamp life or even blow the dimmer or light fitting in extreme circumstances. There are many types of light bulbs and capsule lamps that can be dimmed but the requirements for each type can vary. It increases lamp life so lamps need to be replaced less frequently, which results in reduced replacement lamp and maintenance costs. The simple act of using a dimmer results in a reduction in consumption and saves you money. This has many advantages in addition to being able to set the light levels to suit your mood. In this article you will find out what you need to know (and some things you don’t) to make an informed choice when choosing what type of dimmer you need for each application.ĭimmers work by simply reducing the voltage supplied to the lamp, which results in a light output decrease of the light bulb.
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