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TRIAC 40W 150-300mA Constant Current LED Driver - White

£2699
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Description

The Power supplies Triac is a constant current LED driver delivering up to 40W output across an adjustable 150-300mA current range, designed for driving LED panels, downlights and strip installations where dimming control is required. The driver accepts AC 100-260V input and converts this to a stable DC constant current output, using TRIAC dimming protocols compatible with most standard UK leading-edge and trailing-edge dimmers.

Constant current drivers regulate the current flowing to the LED rather than the voltage, which extends LED lifespan and maintains consistent brightness across the circuit. The 150-300mA adjustment range allows the driver to be paired with different LED configurations without replacing the unit, making it suitable for both residential retrofit projects and new commercial lighting installations where flexibility is needed. The TRIAC dimming capability allows smooth dimming down to low levels without flicker, provided a compatible dimmer is used on the mains input side.

The white plastic housing measures approximately 190mm long by 48mm wide by 28mm deep, with cable entry points at each end and knockout points on the sides for flexible cable routing. The IP20 rating confirms the driver is protected against solid objects larger than 12.5mm but offers no moisture ingress protection, so it must be installed in dry indoor locations only-inside ceiling voids, behind panels, or within junction boxes where it will not be exposed to damp conditions. The unit carries CE certification and is designed for installation by a qualified electrician in accordance with BS 7671 wiring regulations.

Specification
Model Power supplies Triac
Output Power 40W
Output Current 150-300mA (adjustable)
Input Voltage AC 100-260V 50/60Hz
Dimming Protocol TRIAC (leading-edge/trailing-edge compatible)
IP Rating IP20
Material Plastic
Finish White
Dimensions (approx.) 190mm x 48mm x 28mm
Certification CE
Downloads

Product manual

Frequently Asked

What is constant current and why does it matter?

Constant current drivers regulate the current (measured in milliamps) flowing to the LED rather than the voltage. This maintains consistent brightness and extends LED lifespan, as LEDs are current-driven devices. Voltage fluctuations on the mains supply do not affect the light output when a constant current driver is used.

Is this driver dimmable?

Yes. The Power supplies Triac uses TRIAC dimming protocols and is compatible with most standard UK leading-edge and trailing-edge dimmers. Dimming performance (minimum dim level, smoothness, absence of flicker) depends on the specific dimmer model used on the mains input side. We recommend testing with your chosen dimmer before final installation.

Can this be used in bathrooms or outdoor installations?

No. The IP20 rating means the driver is protected against solid objects larger than 12.5mm but offers no protection against moisture ingress. It must be installed in dry indoor locations only-ceiling voids, behind panels, inside junction boxes-where it will not be exposed to damp, condensation or water splash.

How is the output current adjusted?

The driver has a current adjustment control (typically a small potentiometer or DIP switch configuration) accessible once the cover is removed. The output can be set anywhere between 150mA and 300mA to match the requirements of the connected LED load. This adjustment should only be performed by a qualified electrician with the driver disconnected from the mains supply.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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    Description

    The Power supplies Triac is a constant current LED driver delivering up to 40W output across an adjustable 150-300mA current range, designed for driving LED panels, downlights and strip installations where dimming control is required. The driver accepts AC 100-260V input and converts this to a stable DC constant current output, using TRIAC dimming protocols compatible with most standard UK leading-edge and trailing-edge dimmers.

    Constant current drivers regulate the current flowing to the LED rather than the voltage, which extends LED lifespan and maintains consistent brightness across the circuit. The 150-300mA adjustment range allows the driver to be paired with different LED configurations without replacing the unit, making it suitable for both residential retrofit projects and new commercial lighting installations where flexibility is needed. The TRIAC dimming capability allows smooth dimming down to low levels without flicker, provided a compatible dimmer is used on the mains input side.

    The white plastic housing measures approximately 190mm long by 48mm wide by 28mm deep, with cable entry points at each end and knockout points on the sides for flexible cable routing. The IP20 rating confirms the driver is protected against solid objects larger than 12.5mm but offers no moisture ingress protection, so it must be installed in dry indoor locations only-inside ceiling voids, behind panels, or within junction boxes where it will not be exposed to damp conditions. The unit carries CE certification and is designed for installation by a qualified electrician in accordance with BS 7671 wiring regulations.

    Specification
    Model Power supplies Triac
    Output Power 40W
    Output Current 150-300mA (adjustable)
    Input Voltage AC 100-260V 50/60Hz
    Dimming Protocol TRIAC (leading-edge/trailing-edge compatible)
    IP Rating IP20
    Material Plastic
    Finish White
    Dimensions (approx.) 190mm x 48mm x 28mm
    Certification CE
    Downloads

    Product manual

    Frequently Asked

    What is constant current and why does it matter?

    Constant current drivers regulate the current (measured in milliamps) flowing to the LED rather than the voltage. This maintains consistent brightness and extends LED lifespan, as LEDs are current-driven devices. Voltage fluctuations on the mains supply do not affect the light output when a constant current driver is used.

    Is this driver dimmable?

    Yes. The Power supplies Triac uses TRIAC dimming protocols and is compatible with most standard UK leading-edge and trailing-edge dimmers. Dimming performance (minimum dim level, smoothness, absence of flicker) depends on the specific dimmer model used on the mains input side. We recommend testing with your chosen dimmer before final installation.

    Can this be used in bathrooms or outdoor installations?

    No. The IP20 rating means the driver is protected against solid objects larger than 12.5mm but offers no protection against moisture ingress. It must be installed in dry indoor locations only-ceiling voids, behind panels, inside junction boxes-where it will not be exposed to damp, condensation or water splash.

    How is the output current adjusted?

    The driver has a current adjustment control (typically a small potentiometer or DIP switch configuration) accessible once the cover is removed. The output can be set anywhere between 150mA and 300mA to match the requirements of the connected LED load. This adjustment should only be performed by a qualified electrician with the driver disconnected from the mains supply.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.