How to Cut LED Strip Lights

Most LED strip lights can be cut to length, but only at marked points. This guide covers where to cut, what the cut piece needs to work, and the strips you should not cut. For picks by type, see our best LED strip lights list.

The Short Version

Look for the cut marks printed on the strip, usually a line with a small scissors icon between pairs of copper pads. Cut straight across the line with sharp scissors, with the strip unplugged. The piece you cut off will not light up on its own, and many listings say it cannot be reused unless you add connectors.

Where to Cut

• Cut marks: listings describe cutting along the marked line, for example every 3 LEDs on many RGB strips, or every 50 mm on COB strips.
• Copper pads: the pads next to the cut line are what connectors or solder attach to. Cutting between marks breaks the circuit.
• Plan the length first: measure the run, add a little for corners, and cut only once.

What You Need

• Sharp scissors or flush cutters
• A tape measure
• Solderless connectors or a soldering iron if you plan to rejoin pieces
• End caps and sealant for waterproof strips

Steps

• Unplug the strip from its power supply.
• Measure the length you need and find the nearest cut mark.
• Cut straight across the line, through the copper pads, in one clean cut.
• Connect the piece you want to keep to the power or controller end. A strip must have power at one end.
• If you want to use the leftover piece, connect it with a clip or soldered connector that matches the strip’s width and number of pins.

Strips You Should Not Cut

Not every strip is cuttable. Lepro’s S1 AI strip says in its listing that it cannot be cut, and a few listings warn that the cut-off part cannot be reused. Read the product page before you cut. Sealed waterproof strips can be cut, but the end must be resealed so moisture cannot get in.

Who Should Look Elsewhere

• Want a fixed-length kit with no cutting? See under cabinet LED strip kits, which come pre-cut.
• Have a strip that cannot be cut, like Lepro’s S1? Buy the length you need.

Frequently Asked Questions

Can I cut a strip that is already stuck on?

Yes at the marks, but it is easier to cut before you peel the backing.

Will the strip still work after I cut it?

The piece connected to the power supply keeps working. The cut-off piece needs its own power or a connector.

Can I cut an addressable or Wi-Fi strip?

Many can be cut at marks, but the controller sees fewer pixels. Check the listing first; some strips cannot be cut.

Safety note: low-voltage LED strips are safer to handle than mains wiring, but their power supplies plug into household power. Use the supply in your kit or one that matches the strip’s voltage and wattage, keep it dry, and follow the manual. Anything that connects to a household circuit should be done by a licensed electrician.

Related: how to connect LED strip lights and how to install LED strip lights. See all LED strip lights.

Check current pricing and availability for the VOLIVO 65.6 ft Wi-Fi LED Strip.

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