How much electricity do permanent outdoor lights use?

Less than most people expect — permanent LED lighting is relatively inexpensive to operate, and the exact cost comes down to four things you control: footage, brightness, operating hours, and your electricity rate.

Rather than quote a one-size-fits-all dollar figure, this article gives you the published numbers and the simple formula, so you can work out a defensible estimate for your own home on your own utility rate. For scale: even with every LED driven flat out, a typical front-only roofline adds up to a couple hundred watts — the territory of a few old-style incandescent bulbs — and everyday settings run below that.

Why LEDs use so little power

LEDs produce light directly from electrical current through a semiconductor, instead of heating a filament until it glows. Far less of the energy you pay for leaves as waste heat, which is why an entire roofline of modern LED modules has a maximum draw comparable to just a few old-style incandescent bulbs. It's also part of why the hardware lasts as long as it does — our nodes are rated for 100,000+ hours — since less heat means less stress on the components.

On the Starise Gen 2 system, the published figure is about 0.96W per puck node. How much a node actually draws at any moment depends on brightness, colour, and the effect running — dimmed and colour settings draw less than full-output white.

The formula, if you want to check the math yourself

Here's a worked upper bound you can adapt: a 150-foot front elevation has roughly 225 nodes (one every 8 inches). At the full published ~0.96W per node, that's about 216W — call it 0.22 kW. Running 8 hours a day for 30 days gives about 52 kWh a month as a ceiling. Multiply that by your own all-in electricity rate and you have a personal worst case for that footage and schedule.

The catch — and it works in your favour — is that "system power" on paper is an upper bound, not what you actually use. Most homeowners don't run 100% brightness, pure white, 8 hours a day, all year. They run warm white at partial brightness on weeknights, colours for a holiday stretch, or a sunset-to-midnight schedule that varies with the season. Real usage generally lands below the ceiling math.

Three realistic usage patterns

These are illustrative patterns, not quoted prices — the point is how the variables interact:

Architectural white, evenings

Warm or pure white for a few hours each evening — the most common everyday pattern. Moderate brightness and moderate hours put this comfortably at the low end of usage. Many homeowners run this on a sunset schedule and simply stop thinking about it.

Holiday colours and animated effects

Counter-intuitively, colourful animated scenes often draw less than full-blast white: at any moment, many LEDs in an effect are showing a colour below full-white output, or are momentarily dim as the pattern moves. Longer holiday-season hours can offset that, but colour itself isn't a cost penalty.

Low-brightness accent lighting

A subtle 20–40% brightness glow for kerb appeal draws a small fraction of maximum output. If this is your default look, your real monthly cost sits well below the full-brightness example.

What actually changes your electricity use

• Footage — more feet means more nodes. A front-only install versus a full wrap is the single biggest structural difference between two homes' usage.
• Brightness — running at half brightness dramatically reduces draw versus full output.
• White vs. colours and effects — full-output white is the heaviest setting; colours and animations generally sit below it.
• Hours per day — a sunset-to-11pm schedule uses roughly half the energy of dusk-to-dawn.
• How many zones are active — lighting just the front peaks for a Tuesday costs less than the whole perimeter for a party.
• Your electricity rate — Alberta rates vary by plan and provider, which shifts the dollar figure even when usage is identical.

How this compares to old-style Christmas lights

Permanent LED lighting is a fundamentally different energy proposition from the incandescent light strings many of us grew up with. Incandescent bulbs spend most of their energy making heat; LEDs don't. You get modern brightness across the whole roofline for a fraction of the energy older lighting technology used — all year, on demand. We've covered the bill question in more depth in do permanent lights increase your hydro bill?

And unlike seasonal lights, there's nothing else to buy: no replacement strings every few years, no ladder rental, and with Starise, no subscription — the electricity is essentially the entire running cost.