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Learn more by watching our NLS 40064 | Trailing Edge Dimmer Mechanism 10-400w video.
The NLS 40064 is a trailing edge phase-control dimmer mechanism rated 10–400W for 220–240V AC circuits, designed to control incandescent, halogen, dimmable electronic transformer, and dimmable LED lighting loads. The 40064 uses trailing edge dimming to reduce flicker on LED lights compared to leading edge designs. Installation requires a separate 10A switch mechanism for ON/OFF control; the 40064 handles the dimming function only. It is recommended for all NLS downlights and suits a wide range of domestic and light commercial applications.
Licensed electricians favour trailing edge dimmers because they work smoothly with modern LED fixtures without the buzz or flicker common on cheaper leading edge designs. The NLS 40064 delivers reliable dimming across the full 10–400W load range and is compatible with most dimmable LED drivers without colour shift. Its overload and thermal protection safeguards the mechanism during accidental overcurrent or sustained high temperature. The Australian 84mm pattern mounting installs on standard domestic wall plates alongside existing switches and outlets, making retrofit jobs straightforward.
Specifying trailing edge dimmers on LED lighting jobs protects against warranty call-backs from customers frustrated by flickering or hum. The 40064 is cost-effective enough to use across multi-gang installations, where each circuit is derated according to the bundled load table (for example, two 40064s on the same gang plate derate to 300W each). Stocking the 40064 as a go-to replacement dimmer simplifies inventory and reduces time hunting for compatible alternatives when customers need to retrofit dimming to existing circuits.
The NLS 40064 is not rated for external walls, damp areas, splash zones, or weatherproof locations. Do not install on circuits controlling non-dimmable LED lights (non-dimmable LEDs will not function with the dimmer), motor-driven appliances (fans, pumps), or inductive loads. Installation by a licensed electrician is required.
Verified Sparky Direct customer reviews: NLS 40064 Trailing Edge Dimmer Mechanism (40064)
"Work with a chandelier of 10 x 4w dimmable candle style LED bulbs." — Phil
"Great product have had no problems with them and very affordable." — Chris Butson
"Good dimmer, no humm or buzz whatsoever operating 9 x 14w LED lights." — Tank
(40064)
The NLS 40064 complies with Australian and international EMC standards and is approved for use on standard domestic 240V circuits under AS/NZS 3000 when installed by a licensed electrician. No building approval is required for retrofit installation of the 40064 on existing circuits, but the installation must be notified under your state's electrical installation notice scheme.
The 40064 mounts on standard 84mm Australian pattern wall plates (same as regular switches and power points). A separate 10A switch mechanism is required in series with the dimmer to provide ON/OFF control; the dimmer itself only controls brightness. Install the switch first in the circuit, then run the dimmer between the switch and the light fitting.
Yes, the 40064 is designed for dimmable LED lights with trailing edge compatible drivers. Check the LED globe or downlight packaging for "dimmable" and "trailing edge compatible" markings. Non-dimmable LEDs will not function with the 40064. The dimmer eliminates the hum and flicker common on budget dimmers, delivering smooth dimming across the full brightness range.
When two or more dimmers are stacked on the same gang plate, heat builds up in the confined space. Derating (reducing the maximum load per dimmer) prevents thermal overload. Two 40064 units on one plate derate to 300W each; three to 250W each; four to 200W each. Refer to the datasheet derating table to confirm limits for your multi-gang installation.
No, the 40064 is not compatible with motors or fan speed controllers. It is designed for resistive loads (incandescent and halogen lamps) and inductive loads with dimmable LED drivers only. Using it on a fan or motor will damage both the dimmer and the motor. Use a dedicated fan speed controller for fan dimming instead.
The 40064 carries a one-year manufacturer's warranty (domestic and commercial) from the invoice date, covering manufacturing defects. Warranty claims are processed via Sparky Direct; you will need proof of purchase and the product must be unmodified and unused (or have failed in normal use). In-home service is not available; return the defective unit to Sparky Direct for assessment and replacement or refund.
The 40064 is compatible with incandescent lamps, halogen lamps, electronic transformers, and dimmable LED drivers with trailing edge response. It is NOT compatible with non-dimmable LEDs, CFLs, motors, fans, or inductive loads. The load range is 10–400W on a single dimmer; below 10W, the mechanism may not function smoothly, and above 400W, thermal protection will activate. Always check fixture packaging for "dimmable" and "trailing edge compatible" markings before installation.
The NLS 40064 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | NATIONAL LIGHT SOURCES |
| SKU | 40064 |
| Model # | 40064NLS |
| Barcode # | 9336700009274 |
| Package Weight | 0.040kg |
| TYPE | VALUE |
|---|---|
| Type | Switches |
| Brand | NLS |
| Colour | White |
| Protection | Overload and Thermal |
| Dimmable | Yes |
| Load Range | 10-400w |
| Nominal operating voltage | 220-240V |
| Nominal operating frequency | 50H |
| load | 10W |
| Dimming technique | Trailing edge phase control |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
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