When it comes to LED strip lights, there is no such thing as a “one size fits all.” However, whether you require flexible or stiff lights, monochrome or RGB, waterproof or non-waterproof, most LED strips will have one thing in common… they can be trimmed to specific lengths.
Straight or dotted black lines will be spaced at regular intervals across each LED strip.
Because the circuits are completely closed at these spots, these are the safest places to cut your LEDs without causing damage.
Each LED strip will have its own set of cutting lines. They’re normally every three LEDs as a general rule. If there are 30 LEDs per meter, for example, the cutting lines will normally be every 10cm.
Copper soldering pads should make a symmetrical pattern on each side of the black cutting line. Locating these copper pads is a useful tip for verifying that you’ve accurately identified the cutting line.