CCT Changeable DC 12V 24V SMD 3528 120 piece LED per Meter Flexible LED Strip Light

The ILED-FX-3528 120DW is a flexible LED strip built around the SMD 3528 package at 120 LEDs per meter, with a dual-white layout that lets you change the colour temperature. Instead of being locked to one fixed white, it mixes a warm channel and a cool channel so you can land anywhere in the 2800K to 6500K range on the same strip. That makes it the pick for spaces where you want the light to feel different in different areas, or to shift with the time of day.

Tech specs at a glance

The strip runs on 12VDC or 24VDC, draws 9.6W per meter and puts out about 800 lumen per meter with a 120 degree spread. It covers 2800K to 6500K, colour rendering is CRI above 80 as standard and above 90 on request. Each piece ships as a 5 meter roll, 10mm wide, cuttable in 25mm steps.

What CCT changeable means

The DW stands for dual white. The strip carries two kinds of white LED, a warm one and a cool one, and the balance between them sets the temperature. Put more of the warm channel in and the light moves toward 2800K; more of the cool channel and it moves toward 6500K. In between you get a neutral, balanced white. This is not an RGB strip, it only mixes two whites, so you get a range of white tones rather than colours.

What you need to change the temperature

To actually shift the temperature you need a two-channel control setup, one for the warm channel and one for the cool, so you can mix them. A two-channel LED driver or dimmer that supports a dual-white strip is what you are looking for. If you only need one fixed temperature, you can run just the channel you want and keep the setup simple.

Dual voltage: 12V or 24V

You can have this strip on 12V or 24. A 12V version is simple and pairs with the small transformers used for short cove and cabinet runs. A 24V version drops less voltage down a long line, so it stays even over longer distances. Choose the voltage that fits your supply and the length of the run, and match the driver to it.

IP rating options

The same strip is offered in four protection ratings. IP20 is for dry indoor locations such as coves and cabinetry. IP65 handles covered outdoor and wet areas like eaves and facades. IP67 and IP68 are for where the strip gets fully wet or sits in harsh coastal air. Match the rating to the location, not the highest one on the list.

Build and installation

The strip cuts cleanly in 25mm steps, so you trim it to fit instead of bending a longer piece. It is 10mm wide to fit the dual channel, so check your cove, channel or gap clears that width. It is backed with 3M yellow double-sided tape, and a 3M red tape is available on request. A 15cm input cable is fitted to the leading end, and connector cables can be customized to a different length or plug.

What is in the box

Each order ships with the strip as a 5 meter roll, the 3M yellow mounting tape, and the 15cm input cable on the connection end. Custom lengths are cut to order from the same roll.

What you need to supply

You will need a power supply at 12VDC or 24VDC, matched to the strip version, sized for your total meters, which the 9.6W per meter figure makes easy to add up. To change the temperature you also need a two-channel driver or dimmer that suits a dual-white strip.

Where it gets used

Because one strip covers the whole white range, it suits rooms where different zones want different temperatures, a living space that should feel warm but a task area that should be bright, or a commercial space you want to tune. Outdoors the IP65 and above versions handle eaves, facades and garden edges.

Lifespan and reliability

The SMD 3528 LEDs carry a 50,000 hour rated life, which at typical use is well past a decade. There are no moving parts and no fan, so the strip does not fail through heat. It works from -20 C to 50 C, and with a 24V supply and a properly sized driver the heat stays manageable even in a tight cove.

Here is what installers tell us they like about the 120DW 3528 strip:

One strip, every white. It spans 2800K to 6500K, so instead of buying and splicing different fixed strips, one dual-white strip covers warm, neutral and cool on the same run.

Tune it to the space. Mix the two channels to get the exact temperature you want, cosy and warm or bright and clean, or split a room so each zone sits at its own level.

Smooth, even light. At 120 LEDs per meter the line reads as smooth with little visible gap between the points.

Dual voltage choice. You can order it on 12V or 24, and for longer lines the 24V version stays even. That saves you from guessing the supply later.

Cut to the exact length. The 25mm cut step means you trim the strip to fit instead of wasting meters or bending a piece that will not sit flat.

CCT-changeable, dual-white strips like this one are used where you want to control how the white light feels:

Whole-home and multi-room lighting. Because one strip covers 2800K to 6500K, you can run it through different rooms and set each to the temperature that suits it, warm in the bedroom, brighter in the study.

Living spaces that change with the day. A cove or accent line that is warm and cosy in the evening but cleaner and brighter for daytime use is exactly what the dual-white strip is for.

Task and worktop lighting. Set the mix toward the cool end for a clear, alert working light under cabinets, on desks and in reading zones, then warm it back down for relaxation when the day is done.

Retail and display. Shops and galleries use the temperature range to tune how products and displays look, from a warm, welcoming tone to a crisp, bright one.

Architectural and facade. With IP65 and above, the strip outlines eaves, columns and garden edges outdoors, where you can match the temperature to the building or to the time of day.

A few things to check before ordering:

Buy the two-channel driver. To change the temperature you need a driver or dimmer with a warm channel and a cool channel that matches this dual-white strip. Without it you can only run one fixed temperature.

Pick the voltage first. Choose 12V for short, easy runs and 24V for longer lines, and buy the matching power supply. Mixing them up is the most common cause of a strip that will not run.

Size the power supply. Multiply your total meters by 9.6W and buy a little above that figure. Undersizing is the most common cause of a strip that dims at the far end.

Match the IP rating to the location. IP20 is dry indoor only. Use IP65 for covered outdoor and wet areas, and IP67 or IP68 for full or harsh exposure.

Check the 10mm width. The dual channel makes it broader than the single-row strips, so make sure your channel, cove or gap clears 10mm before you start cutting.