The occurrence and the intensity depend on certain conditions. Depending on the design of the electronics and the choice of components, the vibrations generated may also be audible outside the lamp. The manufacturers try to prevent the components from vibrating by impregnating them with resin, for example. Sometimes the switching frequency still lies in the audible frequency spectrum. Such power supplies work with a switching frequency in the kilohertz range, whereby the components can also be excited to vibrate. High-frequency noises can be generated by the switching power supply.
#Quiet dimmer for led lights driver
The LED driver usually contains capacitors for smoothing the voltage.
Furthermore there are some coils or chokes for the intermediate storage of energy as well as for the avoidance of EMC disturbances.
This part of the electronics contains, among other things, a small transformer for transforming the voltage. The switching power supply generates the operating voltage for the LED’s from the 120V mains voltage. This electronics consists of several components. With LED lamps, driver electronics are integrated for example with LED ceiling lights, the driver is usually located in the base. The main cause of noise can usually be found in the LED driver of the lamp. This also means that a shorter LED lifespan must not be expected. Can damage occur?Įven if the humming and whistling noises seem strange at first, in most cases they have no influence on the operation of the lamps. You can check out these Cree Light bulbs or these Sylvania Light Bulbs on Amazon. There are some types of LED bulbs on the market which don’t make any noise according to thousands of customers. Nevertheless, the no-name products tend to have such side effects more often, which is certainly due to the cost savings during production. It doesn’t matter whether they are cheap no-name lamps or branded ones. In my experience, the noise can occur with all LED lamps. This is also the reason why the same LED lamp does not necessarily make a sound to every buyer. The effect can have different causes and is evoked by certain conditions. In most cases, the noises such as buzzing or humming do not indicate a defect. However, even a low hum can be very annoying, for example in the living room lighting or above the dining table. Humming sounds normally occur at a frequency of 120 Hz, i.e. Especially high-frequency buzzing is often perceived as a tinnitus, especially by younger people. Such noises with the recently purchased LED lamp often causes astonishment and annoyance. The noise can be different and is often described as follows by different people: Some LED lamps do not only produce light during operation but also generate noises.
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