MEAN WELL
Supplier
Supplier
LED Grow Light Drivers for Horticulture Fixtures
MEAN WELL LED drivers for horticulture fixtures and grow rooms: high-power HLG drivers, constant-power XLG drivers for flexible LED boards, and ELG models with 3-in-1 or DALI dimming, in IP65 and IP67 metal housings.
- Up to 320 WPer driver on the models listed on this page
- IP65 / IP67Metal housings for humid grow rooms
- 0-10V · DALIDimming on AB-type and DA-type models
Step 1
Constant current vs constant voltage in grow fixtures
Most horticulture LED boards are constant current: the driver sets the current (for example 1400 mA or 2100 mA) and the board voltage follows. Some light bars run on a fixed 24V or 48V and need a constant voltage driver. Check the board datasheet first: the driver output type must match.
High power
High-power drivers 320–600 W (HLG-320H/480H/600H)
HLG-320H models on this page are 320 W at 24V; HLG-480H and HLG-600H are available by quote. AB-types add 3-in-1 dimming. The XLG-320-V-A is a 312 W constant-power alternative.
Constant power
Constant-power drivers for flexible boards (XLG)
XLG drivers work in constant power mode: within their voltage window they hold the rated power, so one model can drive boards with different voltages. DA2 versions add DALI-2 control.
Dimming
Dimming and controllers (B-type 0-10V, DALI)
For grow controllers with 0-10V output, use a driver with 3-in-1 dimming (B or AB type on HLG, ELG and XLG). For DALI systems, choose DA or DA2 versions. Check the dimming wiring diagram in the datasheet before connecting several drivers to one controller.
Environment
Heat, humidity and IP67 in grow rooms
Grow rooms are hot and humid. Choose an IP65 or IP67 metal-housing driver (HLG and ELG are IP65 or IP67 depending on the type; XLG is IP67), mount it where air can move, and check the derating curve: output power drops at high ambient temperature.
Service
Replacing the driver in an existing fixture
1
Read the old label
Note the output type (constant current or constant voltage), the current or voltage range and the wattage.
2
Match dimming and IP
Keep the same dimming type (0-10V, PWM, DALI) and an equal or better IP rating.
3
Check size and wiring
Compare dimensions and mounting holes, and follow the wiring diagram in the new datasheet.
Related resources
HLG seriesHigh-power drivers.→HLG-C seriesConstant current HLG versions.→XLG seriesConstant-power drivers.→ELG seriesDimmable drivers incl. DALI.→HBG(P) seriesRound high-bay drivers.→Constant current vs constant voltageWhich type your LEDs need.→Find your MEAN WELL power supplySearch by voltage, wattage and type.→Request a quoteFixture builds and volume.→
Grow light driver FAQs
Which MEAN WELL driver is used in LED grow lights?
The HLG series is widely used in grow fixtures, alongside XLG constant-power drivers for flexible boards and ELG for dimmable or DALI fixtures. Match the output type and range to your LED boards.
Can I replace my grow light driver with an HLG?
Yes, if the HLG model matches the output type (constant current or constant voltage), the voltage and current range, the wattage and the dimming type of the original. Send us the old label and we will match it.
What do the A, B and AB suffixes mean?
On HLG drivers, A-type has a built-in potentiometer to adjust output, B-type has 3-in-1 dimming (0-10V, PWM signal, resistance), and AB-type has both. Blank types have neither.
How many boards can one driver run?
Add the board watts and keep the total within the driver rating × 0.8. The boards must also fit the driver voltage window when wired in series or the current range when wired in parallel; check the board and driver datasheets.
Can I dim grow lights with 0-10V from a controller?
Yes, with a driver that has 0-10V dimming, such as HLG or ELG B/AB types. Connect the controller to the dimming wires as shown in the datasheet.
Need help choosing?
Send your LED board specs (voltage and current range), boards per fixture and dimming controller to sales@htdelectronics.com, or request a quote for fixture builds.