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Crestron part number CLXI-2DIMU8
The Crestron CLXI-2DIMU8 is an 8 channel universal dimmer module for 230 Volt LED, incandescent, magnetic low-voltage, electronic low-voltage and 2-wire dimmable fluorescent lighting. It installs in a CAEN or CAENIB wall mount automation enclosure as part of a centralised Crestron lighting control system.
Price on request
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Need it installed? Our Crestron certified engineers install, set up and programme everything we supply. A 4 hour visit is €440 and a full day €880, plus VAT.
About the Crestron CLXI-2DIMU8
Each channel detects the dimmable load type connected to it and selects the operating mode to suit. Reverse-phase (trailing edge) mode supports incandescent and electronic low-voltage loads, while forward-phase (leading edge) mode handles magnetic low-voltage loads. Because of this, different fixtures and loads do not need different dimmers, which Crestron says means less wiring, fewer components and less time testing and commissioning.
Constant Power dimming technology adjusts the dimmer's on-time response to changes in input voltage, so that power is delivered to the load constantly and consistently. Together with zero-cross filtering, it reduces lamp flicker and keeps the output stable in noisy environments. A custom dimming curve can be created in Crestron Toolbox where a fixture needs one.
The module is made up of two independent 4 channel dimmers and can run from a dual or single 230 Volt feed. Every channel output has an air-gap relay, override presets are supported and the module is convection cooled. Wiring connects through a CLTI terminal block, sold separately. Crestron also publishes a Lighting Fixture Compatibility page, which is worth checking for the fixtures on each channel.
Key features
- 8 channels of universal dimming in forward-phase or reverse-phase mode
- Auto-load detection on every channel
- For 230 Volt LED, incandescent, magnetic and electronic low-voltage, and 2-wire dimmable fluorescent loads
- Constant Power dimming technology and zero-cross filtering to reduce flicker
- Custom dimming curves created in Crestron Toolbox
- Dual or single 230 Volt feed
- Air-gap relays on every channel output and override preset capability
- Convection cooled; installs in a CAEN or CAENIB enclosure
CLXI-2DIMU8 specifications
| Channels | 8 (two independent 4 channel dimmers) |
|---|---|
| Dimming modes | Forward-phase (leading edge) and reverse-phase (trailing edge), chosen by auto-load detection |
| Load types | 230 Volt LED, incandescent, magnetic low-voltage, electronic low-voltage, 2-wire dimmable fluorescent |
| Supply | Dual or single 230 Volt feed |
| Flicker control | Constant Power dimming technology and zero-cross filtering |
| Dimming curve | Custom curve can be created in Crestron Toolbox |
| Outputs | Air-gap relay on every channel output |
| Override | Override preset capability |
| Cooling | Convection cooled |
| Mounting | CAEN or CAENIB wall mount automation enclosure; wiring via CLTI terminal block (sold separately) |
Part numbers on this page
| Part number | Version | Price | Add |
|---|---|---|---|
| CLXI-2DIMU8 | 2 feeds, 230V | On request |
Where the CLXI-2DIMU8 is used
Crestron installed by 1Install
We supply, install and programme Crestron in homes and businesses across Ireland. These photos are from our own installations. See more in our projects, or budget a whole system with our Quote Builders for homes and meeting rooms.



Questions about the Crestron CLXI-2DIMU8
What is the Crestron CLXI-2DIMU8?
It is an 8 channel universal dimmer module with 2 feeds, for 230 Volt lighting. It is made up of two independent 4 channel dimmers, installs in a CAEN or CAENIB wall mount automation enclosure, and dims LED, incandescent, magnetic low-voltage, electronic low-voltage and 2-wire dimmable fluorescent loads.
How does the CLXI-2DIMU8 choose forward or reverse phase?
Each channel automatically detects the dimmable load type connected to it and selects the matching operating mode. Reverse-phase (trailing edge) mode supports incandescent and electronic low-voltage loads, while forward-phase (leading edge) mode handles magnetic low-voltage loads.
How does the CLXI-2DIMU8 differ from the CLXI-2DIM8?
The CLXI-2DIMU8 is a universal dimmer: it covers LED and electronic low-voltage loads as well as incandescent, magnetic low-voltage and 2-wire dimmable fluorescent, and each channel selects forward or reverse phase automatically. Crestron lists the CLXI-2DIM8 for incandescent, magnetic low-voltage, neon/cold cathode and dimmable 2-wire fluorescent loads.
Can the dimming curve be adjusted?
Yes. A custom dimming curve can be created in Crestron Toolbox. Constant Power dimming technology adjusts the on-time response to changes in input voltage so power reaches the load consistently, and with zero-cross filtering it reduces lamp flicker.
What feed and wiring does the module need?
It runs from a dual or single 230 Volt feed. Wiring connects through a CLTI terminal block, which is sold separately, and every channel output has an air-gap relay. The module is convection cooled and supports override presets.
How much is the Crestron CLXI-2DIMU8?
Crestron asks its dealers to give the price of the CLXI-2DIMU8 directly rather than publish it online. Add it to your quote list and we will send you a written quote, with delivery, and installation and programming if you need them.
Can 1Install supply, install and programme the CLXI-2DIMU8?
Yes. 1Install is an authorised Crestron Elite Partner with offices in Skerries, Co. Dublin and Cork. We can supply the CLXI-2DIMU8 on its own, or install, set up and programme it as part of your system. Installation visits are €440 for 4 hours or €880 for a full day, plus VAT and travel.
Does the CLXI-2DIMU8 come with a warranty?
Yes. Everything we supply is new, genuine Crestron with Crestron's standard warranty. If the CLXI-2DIMU8 develops a fault, contact us and we will handle the claim with Crestron. If we installed it, our workmanship is guaranteed for the lifetime of the system.
Is the CLXI-2DIMU8 in stock?
We order Crestron for each quote, so availability depends on Crestron's stock at the time. We check it before we quote and put the expected delivery date on your quote, so you know where you stand before you pay.
Can I buy the CLXI-2DIMU8 without installation?
Yes. We supply Crestron to end users, with or without installation. Like most Crestron devices of this type, it needs setting up or programming before it works in a system, and we can quote for that too.
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