Flicker can be defined as the perception of visual unsteadiness induced by a light source which fluctuates with time for a static observer in a static environment. LED Flicker is caused by voltage ripple at the output of the AC power supply. Furthermore, a stroboscopic effect is the change in motion perception induced by a light stimulus whose luminance or spectral distribution fluctuates with time for a static observer in a non‐static environment.

The frequency range in which the stroboscopic effect is typically experienced is from 50 Hz up to 3000 Hz. Stroboscopic effect may occur as a result of product properties or system‐level interactions, such as lamp/dimmer interactions and is especially important when considering lighting for industrial markets, where high speed machines are operating or in garages at home as the lighting stroboscopic effect can make high speed moving parts appear static when they are not.

The degree and effects of flicker depend on a number of variables

• Frequency of the voltage change – Hz.

• How much of a voltage change occurs.

• The type of light source (LED, incandescent, fluorescent, HID, etc.)

• The gain factor of the lamp (gain factor is a measure of how much the light intensity changes when the voltage fluctuates – [% relative change in light levels] divided by [% relative fluctuation in voltage]).

• The amount of natural ambient light within the lit area.

Indeed, LED and luminaire manufacturers are keen to solve the flicker problem, and they have turned largely to the driver manufacturers for a solution because ultimately the driver determines the extent of flicker. Smarts electronic’s 0-10v dimmable led driver can be flicker free. The frequency range of our 0-10v dimmable constant voltage led driver is 47-63Hz.  We will describe a ripple suppressor circuit that is a cost-effective and flexible way of implementing flicker-free LED lighting.  What’s more, our dimming power supply are UL listed and 7 years warranty. It’s very popular in the USA and Canada market.

More information if you would like to know Smarts Electronics’s led power supply, please login https://www.smarts-electronics.com/ Or contact with Mr. Steven(skype: steven821228 mail:sales1@smartselectronics.com)