MEAN WELL Adjustable Constant Current LED Drivers
Looking for a suitable constant current LED driver can be a lot harder than looking for a constant voltage model.
The reason is that LED lighting manufacturers design their LED lights to achieve optimum light output, which usually means that a very specific constant current is required to power them.
With constant voltage LED fittings they generally require either a 12V, or a 24V LED driver.
There is no such industry standard when it comes to constant current LED drivers.
MEAN WELL offers a wide range of constant current LED drivers with Australian approvals, which are sold through the MEAN WELL Australia sales representative listed on this website.
Many of these constant current LED drivers do have adjustable outputs, so if you do have a specific current output you are looking for, then there is a strong likelihood that there will be a suitable model within the MEAN WELL range.
The following series of MEAN well constant current LED drivers are adjustable.
MEAN WELL HLGHC Series 

MEAN WELL HLG Series 

MEAN WELL ELGC Series 

MEAN WELL ELG Series 

MEAN WELL LCM Series 
MEAN WELL HLGHC Series
The MEAN WELL HLGHC series LED drivers usually have a fixed constant current output. However, a version of these is available which allows you to adjust the current output. The actual adjustment range available is stipulated in the data sheet.
Typically the lowest you can go is about 50% of the rated current output.
MEAN WELL HLG LED drivers are considered to be a premium quality product. They are the ‘go to’ LED driver for the LED signage industry and manufacturers of outdoor LED lighting, offering exceptional reliability and a warranty period of 7 years. They have a rugged IP65 metal enclosure, so they can be mounted in areas, where they may be subjected to knocks and bumps, plus they are also weather resistant.
That being said it is recommended that LED drivers are not mounted in direct sunlight. This can cause the temperature inside the LED driver to exceed the maximum operating temperature specified in the data sheet. This could result in a failure, that wouldn’t be covered by the warranty.
The following table sets out the models available and constant current ranges available:
Model 
Power Output (Typical)* 
Constant Current Ranges 
60 Watts 
420 ~ 700mA 

80 Watts 
210 ~ 350mA 420 ~ 700mA 

120 Watts 
175 ~ 350mA 350 ~ 700mA 
*Refer to data sheet for actual power output of model selected.
MEAN WELL HLGH Series
The MEAN WELL HLGH series LED drivers are in fact constant voltage LED drivers, which can be used in constant current mode.
The constant current output ranges offered within this series are much higher than those within the dedicated constant current HLGHC series.
They have the same attributes as the HLGHC series. Refer to the following table for the range of constant current outputs available.
Model 
Power Output (Typical)* 
Constant Current Ranges 
40 Watts 
2 ~ 3.33A 1 ~ 1.67A 

60 watts 
1.5 ~ 2.5A 0.78 ~ 1.3A 0.69 ~ 1.15A 

80 Watts 
2.04 ~ 3.4A 

100 Watts 
2.5 ~ 4A 2 ~ 3.2A 

120 Watts 
5 ~ 10A 2.5 ~ 5A 2 ~ 4A 

150 Watts 
7.5 ~ 12.5A 3.8 ~ 6.3A 

185 Watts 
1.95 ~ 3.9A 

240 Watts 
8 ~ 16A 5 ~ 10A 3.3 ~ 6.7A 2.5 ~ 5A 

320 Watts 
11 ~ 22A 6.67 ~ 13.34A 4.45 ~ 8.9A 3.8 ~ 7.65A 3.35 ~ 6.7A 

600 Watts 
20 ~ 40A 12.5 ~ 25A 10 ~ 20A 
* Refer to data sheet for actual power output of model selected.
MEAN WELL ELGC Series
The MEAN WELL ELG series LED drivers have a lot of similarities to the HLGHC series.
These are ideal if you still need a rugged IP65 LED driver, but are looking for something a bit more cost effective. The tradeoff is a slightly shorter warranty period of 5 years.
Model 
Power Output (Typical)* 
Constant Current Ranges 
75 Watts 
175 ~ 350mA 250 ~ 500mA 350 ~ 700mA 525 ~ 1050mA 700 ~ 1400mA 

100 Watts 
175 ~ 350mA 250 ~ 500mA 350 ~ 700mA 525 ~ 1050mA 700 ~ 1400mA 

150 Watts 
250 ~ 500mA 350 ~ 700mA 525 ~ 1050mA 700 ~ 1400mA 875 ~ 1750mA 1050 ~ 2100mA 

200 Watts 
350 ~ 700mA 525 ~ 1050mA 700 ~ 1400mA 875 ~ 1750mA 1050 ~ 2100mA 

240 Watts 
350 ~ 700mA 525 ~ 1050mA 700 ~ 1400mA 875 ~ 1750mA 1050 ~ 2100mA 
* Refer to data sheet for actual power output of model selected.
MEAN WELL ELG Series
Unsurprisingly, the MEAN WELL ELG series also has a lot of similarities with the HLGH series.
Again, these are ideal if you still need a rugged IP65 LED driver, but are looking for something a bit more cost effective. The tradeoff is a slightly shorter warranty period of 5 years.
Model 
Power Output (Typical)* 
Constant Current Ranges 
75 Watts 
2.5 ~ 5A 1.57 ~ 3.15A 1.05 ~ 2.1A 0.9 ~ 1.8A 

100 Watts 
2 ~ 4A 

150 Watts 
5 ~ 10A 3.2 ~ 6.25A 2.1 ~ 4.17A 1.8 ~ 3.57A 1.56 ~ 3.13A 
* Refer to data sheet for actual power output of model selected.
When ordering any of the MEAN WELL LED drivers mentioned above, ensure that the model you are ordering has an ‘A’ suffix at the end of the part number. This denotes that the LED driver ordered is an adjustable model.
MEAN WELL LCM Series
The MEAN WELL LCM series LED driver has been designed for indoor use.
Each of the models offered has a user selectable output. If you can use one of these preset option outputs you can then also dim these LED drivers.
However, if the constant current output you need is not listed in the data sheet, then you may be able to achieve the desired output, by placing a resistor across the dimming terminals on the LED driver, this means that you will no longer be able to use the dimming function, as it is this dimming function that enables you to adjust the output current to the desired level.
Model 
Power Output (Typical)* 
Constant Current Ranges* 
25 Watts 
4 ~ 1050mA 

40 Watts 
4 ~ 1050mA 

60 Watts 
5 ~ 1400mA 
*Refer to MEAN WELL LCM LED Driver Output Current Dimming Calculator.
Calculating the value of the resistor required to achieve the required output current.
A calculator is available for download from the MEAN WELL Australia website, which will quickly determine the value of the resistor required to achieve your required constant current output.
Click on the following link to download the calculator:
MEAN WELL LCM LED Driver Output Adjustment Resistor Calculator.xlsx
Should you have any questions about using this calculator, or would like any further information about MEAN WELL constant current LED drivers, then please do not hesitate to contact MEAN WELL Australia.
We have only listed models in this article that are readily available through the distributors listed on this website. In most cases there will usually be at least one distributor with stock on the shelf, or the distributor will be able to order in for you.
When browsing the data sheets you will notice that other versions of some of these LED drivers are mentioned. These have not been included in this article as they have to be ordered in especially and typically a 12 week lead time is involved. There is also a minimum order quantity of at least 100 units.
For price and delivery on any model not mentioned in this article please contact MEAN WELL Australia directly.