“Per meter” is how LED strip lights are priced and specified, with LED density, wattage, voltage, and cut points varying by product class.
For the full breakdown, see our best 200 Ft LED Strip Lights guide.
When you buy LED strip lights per meter, you’re paying for a specific configuration that determines everything: how bright the strip runs, how much power it draws, and where you can safely cut it. The two numbers that matter most are LED density and watts per meter, and they’re joined at the hip. A dense strip pulls more current, which means you need a beefier power supply and a plan for how you’ll connect it. Understanding what those specs mean before ordering saves you from a dim room or a dead strip.
What Does “Per Meter” Mean for LED Strips?
Strip lights sold “per meter” are priced and specced by length rather than sold as fixed kits. The price you see reflects one meter of a continuous flexible PCB with embedded LEDs, and the specification sheet tells you exactly what you’re getting.
The main specs buyers compare are LED density per meter, watts per meter, voltage, color rendering index (CRI), color temperature, PCB width, cut-point spacing, IP rating, and warranty. Get these right and the strip will perform as expected; miss one and the whole project suffers.
LED density is the headline number. Common densities range from 30 LEDs/m on inexpensive standard strips up to 400 LEDs/m and higher on premium COB (chip-on-board) products, which put a continuous line of light behind a phosphor coating for a dotless look. Higher density generally means brighter output and smoother light, but it also means more power draw per meter.
LED Density vs. Watts per Meter: What’s the Real Difference?
Density determines how many individual light sources sit on each meter of strip; wattage determines how much power that strip consumes. They’re related but not interchangeable, because the LED type and quality also affect output.
Example specs show the range: a 30 LEDs/m strip might run at 27 W per reel, while a 60 LEDs/m strip runs at 40 W per reel. At the premium end, a 140 LEDs/m strip can pull 3.66 W per foot at 24VDC, and a 400 LEDs/m COB strip draws between 5.5 W and 7 W per meter depending on voltage. The takeaway is simple: compare watts per meter against your power supply’s capacity before you buy.
Voltage is the other spec you cannot skip. Strips come in 5VDC, 12VDC, 24VDC, and even AC120V versions. Powering a 12V strip with a 24V supply will damage it quickly, and undersizing the supply causes dimming or flicker. Match the strip voltage to the correct power supply, period.
Cut Points, IP Ratings, and Other Specs That Matter
Cut-point spacing determines where you can safely shorten a strip. Intervals vary from 10 mm on dense COB strips to 50 mm or every 1″ on standard products, with some strips cuttable every 3 LEDs (27.8 mm). Cutting anywhere else damages the trace and kills that segment.
| Spec | What to Look For |
|---|---|
| LED Density | 30–60/m standard, 120–240/m high density, 400+/m COB dotless |
| Watts per Meter | 2–7 W typical; higher density = higher draw |
| Voltage | 5VDC, 12VDC, 24VDC, or AC120V; never mix |
| CRI | CRI 90+ for accurate color rendering |
| Color Temp | 2700K warm to 6500K cool, plus RGB options |
| Cut Points | 10–50 mm or every 1–4″; only cut on marked lines |
| IP Rating | IP20 indoor, IP65/67 for damp, IP68 for submersion |
IP ratings control where the strip can live. IP20 is fine indoors and dry; IP65 handles splashes, and IP68 survives submersion. Waterproof versions cost more, so check the rating before installing near a sink or outdoors.
How Much Do LED Strip Lights Cost per Meter?
Prices vary wildly by product class, region, and order volume, so treat any single figure as a starting point. Retail and wholesale listings show COB strips with CRI 90 and IP20 ranging from about $4–$8 per meter U.S. landed, while commodity 60 LEDs/m strips can cost well under a dollar per meter at factory volume. UK retail examples include £5.88 to £17.70 per meter, and some listings sell per 5 m reel (for example, one India-listed strip at ₹94 per 5 m).
The real cost to compare is cost per meter for a given density, voltage, CRI, and IP rating. A cheap strip that dies in a year or needs a second power supply isn’t cheap. For [long-run projects, our tested guide to 200 ft LED strip lights](https://gadgetsfeed.com/best-200-ft-led-strip-lights/) shows which products hold up at scale. And understand that wattage per meter adds up fast: a 30-foot run of 7 W/m strip pulls roughly 64 watts, which rules out small phone-style adapters and demands a proper LED driver.
Warranty also tells you what the manufacturer expects. Some offer 2 years, others 3–5 years, and that gap often reflects build quality. Before buying, check the spec sheet for density, wattage, voltage, CRI, cut spacing, IP rating, and warranty — if any of them are missing, ask.
One product-specific note: some dense strips use constant-current driver ICs to keep brightness consistent down a long run. One 140 LEDs/m listing advertises powering from a single end without dimming due to this design. That’s a feature of that product, not a universal guarantee, so verify before you assume a long strip will stay even.
For a deeper dive into strip selection, [LEDSupply’s buying guide](https://www.ledsupply.com/blog/ultimate-guide-on-buying-led-strip-lights/) is a solid technical reference on density classes and power planning.
FAQs
Is a higher LED count always better?
Not automatically. Higher density gives smoother, brighter light, but it also draws more power and generates more heat. A 60 LEDs/m strip with good CRI can look better than a cheap 120 LEDs/m strip with poor color quality, so compare lumen output, CRI, and wattage, not just the LED count.
Can I cut LED strip lights at any point?
No. Every strip has marked cut points at specific intervals (10 mm, 50 mm, every 3 LEDs, etc.). Cutting elsewhere breaks the copper trace and kills that segment. Measure your run length against the cut spacing before you order so you don’t end up with a strip you can’t shorten to fit.
What power supply do I need for my strip?
Take the watts per meter, multiply by the total length, and add a 20% safety margin. Then match voltage exactly: a 24V strip needs a 24V driver, never a 12V one.
References & Sources
- LEDSupply. “The Ultimate Guide to Buying LED Strip Lights.” Reference for density classes, selection logic, and power-planning guidance.