How to Choose Year-Round LED House Lights?

Match a permanent LED system to your measured roofline length, the coldest and hottest temperatures it will face, and each component’s own outdoor rating — the string, controller, and adapter can all differ.

A 150-foot kit sounds like the safe middle until you walk the route and count corners, roofline breaks, and where power enters the wall. That measured path — not square footage — decides which kit you buy. Get the measurement right and the rest follows in order: protection ratings, temperature range, brightness, cut and extension limits, then controls.

Why Roofline Length Beats House Size

Buy against the measured route, never the footprint, because corners, gaps, and power-entry location consume footage a floor plan never shows.

Walk the run with a tape measure and note total linear footage, number of corners, and distance from the outlet to the first light. Add slack for each corner and splice. Stay under the kit’s documented maximum total length — a 200-foot kit capped at 200 feet has no room for overage.

• Measure the lit path, not the perimeter.
• Count corners and roofline breaks as extra footage.
• Note the power-entry point before choosing a length.
• Leave slack at each splice and connection.

Outdoor Ratings: Read Every Component Separately

An “outdoor” light string can ship with an indoor-only adapter, so each piece needs its own rating checked.

Govee’s Permanent Outdoor Lights Pro illustrates the trap: strings are IP67 and the control box IP65, but the adapter is specified for indoor use only. Mounting that adapter in the rain because the box said “outdoor” is a common mistake. Match each rating to where that component lives; if the adapter must sit outside, plan a weather-protected housing or an indoor power route instead.

How Cold And Hot Does It Get Where You Live?

Operating temperature is a hard spec, and it varies across models from the same brand.

The Pro is documented from −4°F to 140°F, while the 2 Pro lists −22°F to 140°F for its 100- and 200-foot kits. Confirm the exact model number’s range before buying — not a similar-looking sibling model’s.

Brightness, Cut Limits, And Controls

Everyday white light should drive brightness and color-temperature choice, with holiday color as the bonus.

Output ranges from 40 lumens per light on the 2 Pro to 50 on the Pro and up to 60 on the Prism. Higher output reads better under a deep soffit; lower output suits a shallow eave. Most of the year you’ll run warm or neutral white, so check the white-temperature range too.

Cut and extend only along documented lines. The 2 Pro is built to be cut, reconnected, and split through its Y connector, while the Pro needs a Govee driver module past 150 feet — the 200-foot kit ships with one. Splicing outside the stated maximum voids the protection rating and warranty together.

Controls run through the Govee Home App for color, brightness, and schedules. Matter, Amazon Alexa, and Google Assistant support varies by model, so check the listing rather than assuming. To compare kits against your own roofline and climate, this roundup of tested year round LED house lights puts the options side by side.

Govee’s official material recommends a professional rather than a DIY second-story install.