How much do permanent lights cost to run?

The short answer: for a typical home, only a few dollars a month, even if you run them every night. Here is the math so you can check it yourself.

The math for a typical home

• How many lights? Our lights are spaced about 10 inches apart, so a 150 foot roofline has about 180 lights.
• How much power? Each light uses less than 1 watt. To be safe, we use a full 1 watt in the math. 180 lights x 1 watt = 180 watts.
• What does power cost? The average Colorado home pays about 16 cents per kilowatt hour.

What that adds to your bill

This is the most it should cost for a 150 foot roofline, with every light on full power:

Upper limit estimate. Assumes 180 lights at 1 watt each and 16 cents per kWh. Your real cost depends on your roofline, your brightness, your schedule and your power company's rates.

Why most homes pay even less

• Most people do not run full brightness. Soft warm white at a lower brightness uses less power.
• Schedules shut them off. Set the lights to turn on at sunset and off at bedtime in the app.
• You do not have to run them every night. Many people turn them on for holidays, weekends and special days.

Compared to old-style holiday bulbs

A classic C9 incandescent holiday bulb uses about 7 watts. If you put 150 of them on the same roofline, that is about 1,050 watts, or roughly $30 a month at 6 hours a night. The same length of our LEDs is about $5 a month at most.

Want to know your number?

Every home is different. When we quote your home, we can tell you how many lights you will have so you can run the math for yourself.

Source: EnergySage, Colorado electricity cost, checked September 27, 2026.

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