An LED driver is the power supply that converts 240V mains voltage to the constant voltage a low-voltage LED circuit requires. Dulora's LED driver range covers 12V and 24V constant voltage options across a range of wattage ratings, with dimmable variants for circuits where dimming control is specified.
Correct driver selection is critical for low-voltage LED performance. An undersized driver will overload and fail; an oversized driver wastes energy and may not regulate properly at very low loads. Each Dulora driver listing includes the rated wattage, recommended maximum load (typically 80 per cent of rated wattage for reliability), and compatible globe types.
For G4 and MR16 low-voltage globe ranges, see G4 Globes and MR16 Spotlights. For the full 12V and 24V globe ranges, see 12V Globes and 24V Globes.
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LED Drivers: Choosing the Right Power Supply for Your Low-Voltage Installation
How do I calculate the right driver wattage?
Add up the total wattage of all globes on the circuit, then select a driver rated for at least 20 per cent more than the total. For example: five G4 globes at 2W each equals 10W total load; the minimum recommended driver is 12W to 15W. The 20 per cent overhead protects the driver from running at maximum capacity continuously, which extends its lifespan and improves thermal stability.
Never exceed 80 per cent of the driver's rated wattage in continuous use.
Constant voltage or constant current: which type do I need?
Dulora low-voltage globes (G4, MR16, and all 12V/24V range products) use constant voltage drivers. A constant voltage driver outputs a fixed voltage (12V or 24V) and allows the connected globes to draw the current they need.
Constant current drivers are used in specific LED strip and panel applications and are not required for standard Dulora globe installations. If in doubt, constant voltage at the correct output voltage is the right choice.
Do I need a dimmable driver?
If any globe on the circuit is dimmable and a dimmer is installed, the driver must also be dimmable. A non-dimmable driver on a dimmed circuit will not respond to the dimmer signal and may cause flickering or damage. If the circuit is not dimmed, a standard (non-dimmable) driver is sufficient and typically more cost-effective.
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Frequently Asked Questions: LED Drivers
- What is an LED driver?
- An LED driver is a power supply that converts 240V mains voltage to a lower constant voltage (12V or 24V) for low-voltage LED circuits. It is required for any low-voltage LED installation connected to mains power.
- How do I choose the right wattage?
- Add the total wattage of all globes on the circuit and select a driver rated for at least 20 per cent more than the total. Never exceed 80 per cent of the driver's rated wattage in continuous use.
- Are Dulora LED drivers certified for New Zealand?
- Yes. All Dulora LED drivers carry AS/NZS certification and are covered by a three-year product warranty.
