Can I use my 40W driver to operate my 10W board?
Yes, the 40W refers to maximum possible power handling of the driver and therefore it is able to correctly operate the lower power 10W board. However, it is important you also consider the current is correct for your requirement and the driver voltage range is also suitable (see other FAQ's on these subjects)
Can I operate my 700mA LED module with my 1050mA driver?
In general, the answer is no because this will overpower the LED module causing shorter life with possible overheating and damage. However, with special consideration in regards to the boards abilities and/or the boards thermal management, operating with increased current could be possible - refer to the LED module data sheet.
Can I operate my 700mA LED boards at 500mA?
Yes. In all cases, under-running by any current value is possible, noting the associated reduced lumen output. There are also additional advantages, when under running this way; increased lumens / watt, cooler operation and longer life.
Why do I need to consider the driver voltage range?
It is necessary to ensure the driver voltage range is compatible with the LED module; the driver will have a lower limit, which the quoted LED module voltage must be greater than and the driver will have an upper limit, which the quoted LED module voltage must be less than.
How do I operate switch-dim capable LED drivers?
Switch-dim capable LED drivers can be used with any 250V rated push-to-make switch. Pressing the switch supplies a brief live signal to a designated input on the driver. A short duration press turns the LEDs on and off. A long duration press fades the output up or down. Switch-dim LED drivers are not suitable for use with rotary wall dimmers. For specific wiring details please see the driver data sheet.
Why do some LEDs in a luminaire appear brighter than others?
This occurs when there is insufficient supply voltage to fully drive all the LEDs. The luminaire will operate the maximum number of LEDS possible until normal voltage is restored. If the problem persists consult your energy supplier.
How do I install my DOM lamps?
All DOM lamps are direct replacements for existing 12V or 240V AC supplied lamps. No modification to existing circuits is required. For individual DOM lamp operating voltage please refer to our
online catalogue
Do I need additional drivers or transformers?
All DOM lamps have inbuilt 12V or 240V AC drivers and therefore require no modification to existing fittings. For new installation, either connect direct to the 240V mains supply or when using 12V DOM lamps, connect via a suitable 12V transformer.
A lamp strikes when powered on but goes out after a few minutes
Nearly always this is caused by the power factor correction capacitor being placed at the wrong point in the circuit. The capacitor should be connected to incoming live and neutral only.
A circuit containing an MCi series ignitor fails to strike the lamp.
Check that the ballast is compatible with the ignitor you are using. The ballast silkscreen will indicate that terminal 2 is for a particular MCi series ignitor. If the ballast is OK check the wiring to make sure that the ignitor terminal "Lp" connects to both the lamp holder and ballast terminal 4 for 240V operation.
What is the maximum gear to lamp distance?
All ignitors have a maximum lead capacitance with which they will reliably strike lamps. As a rule of thumb each metre of lamp cable adds 100pF of capacitance, so a maximum capacitance of 200pF translates to 2m of lamp cable for example.
How can I establish ballast/ignitor compatibility?
Type the ballast code into the search bar at the top of this page. Below the electrical data is a list of all compatible ignitors and wiring diagrams for use with that particular ballast.
Is it normal for a lamp to have small holes in the ceramic material of the Edison screw cap?
These are normal tooling access points and have no detrimental effect on the lamp.
There is dirt/debris inside the arc tube.
The arc tube contains a mix of halide salts which are evaporated to produce light when the lamp is on. These are visible and can take the appearance of loose particles inside the arc tube, or a thin film seen to adhere to the quartz. Both are completely normal.
New lamps exhibit a perceivable flicker.
New lamps sometimes need a little time to stabilise. Continuing to operate them normally for a day or two usually eliminates any flicker.
