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How to Choose the Suitable Mean Well Dimming Products
There are so many MW dimming products. How can I make a choice? What are the pros and cons?
First, you have to know your Led lamp specification in order to screen out a suitable Led driver range (Wattage, Voltage, Max Current CC or CV). From those ranges, further check a compatible dimming function. Hereunder is a table to show you the pros and cons of Dimming Function you can find in MW’s catalogue.
Dimming |
Pros |
Cons |
Resistance |
Simple concept, lowest cost |
The durability of the potentiometer may be an issue. |
Voltage |
Easy to either find a compatible controller or build one. |
None |
PWM |
Easy to find PWM control circuit. |
None |
AC phase cut |
Old fashion dimming, can dim 100% to 0%. Dimming controller operate with different drivers |
Lamp, driver and dimming controller may have compatibility issue. |
DALI |
Digital concepts, variable control function and application. 0 ~100% dimming feasible. |
Cost is higher. Specific controllers are needed. |
Push Dimming |
Simple control. Controller cost relatively low. |
Unable to fine tune dimming level. |
Timer Dimming |
Dimming profile customizable, including duration and current level. |
Dimming profile cannot be altered on site by customers or operators. |
PWM Voltage output |
Output current in PWM style. Relieve color shift issue. |
Owing to frequent ON/OFF switches, it is more vulnerable to EMI issue. Compared to other types of dimming. |