LED vs. incandescent
LEDs use a fraction of the power, run cool and last for years. That means you can run far more strands on one circuit and leave them on a garland or tree without worrying about heat.
Incandescent still has the warmest, most candle-like glow and dims beautifully. If you love that look, choose LED sets labeled warm white 2700K or lower, or 'candlelight', and you'll get very close.
Color temperature
Color temperature is measured in Kelvin. About 2700K is warm white, the soft gold glow you see on luxury catalog homes. 2200K to 2400K reads even more like candlelight. 3000K is neutral, and 5000K and higher is blue-white.
For the luxury look, use warm white everywhere and never mix it with cool or blue-white on the same house. Mixed whites look mismatched in photos and from the street.
Bulb types
Mini lights: the small classic bulb. Use them on trees, shrubs, garland and railings.
C7 and C9: larger strawberry-shaped bulbs (C9 is the bigger one). C9 is the estate roofline standard and reads from the street.
G-series globe and Edison: round bulbs (G40 is about 1.5 inches). Best for porches, pergolas and covered entries.
Fairy, micro or 'seed' lights: tiny LEDs on fine copper or silver wire. Use them in garland, centerpieces, lanterns and mantels.
Net, icicle and curtain lights: pre-spaced panels for shrubs (net), eaves (icicle) and windows or walls (curtain). Icicle lights look most refined in warm white with an irregular drop.
Rope light: LEDs inside a flexible tube. It's practical for outlining walkways or steps but less elegant on a roofline.
Pre-lit vs. separately lit trees
A good pre-lit tree saves hours and hides the wiring in the branches. Look for warm LEDs and single-plug wiring through the trunk.
Lighting a tree yourself gives a fuller, more custom glow. A common designer rule is about 100 mini lights per foot of tree height, so roughly 750 for a 7.5-ft tree. Go to 150 or more per foot for a dramatic catalog look. Wrap each branch from trunk to tip rather than circling the outside.
Commercial-grade vs. retail sets
Commercial-grade sets use heavier wire (often 18 to 22 AWG), sealed or coaxial connectors that keep water out, and one-piece or replaceable bulbs. They last many seasons outdoors.
Retail sets are lighter and cheaper. Many are shunted, so one dead bulb doesn't kill the strand, but they wear out faster. For a roofline you see every night, commercial-grade is worth it.
Smart and app-controlled lights
App-controlled strings let you set schedules, dim and switch scenes from your phone, and some map each bulb individually. For a premium look, choose a set with a dedicated warm-white diode (often sold as RGB+W) and save the color effects for special nights.
Permanent architectural lighting
Permanent track lighting (Govee, Jellyfish and Trimlight are well-known names) mounts in a low-profile channel under the eave or along the fascia. It stays up all year, is nearly invisible by day, and is controlled by an app, so it can be warm white for Christmas and soft accent light the rest of the year.
This is a professional install, typically including roof work and a dedicated outlet. Get at least two quotes and ask about warranty and track color.
Outdoor safety
Use only lights and cords marked UL or ETL listed for outdoor or wet-location use.
Plug everything into a GFCI-protected outdoor outlet, and don't overload a circuit or daisy-chain past the maker's limit.
Put lights on a timer so they aren't running all night.
Hang them with plastic clips. Never use staples or nails, which can cut the insulation and damage gutters and shingles.
Work from a stable ladder with a helper, and stay well away from overhead power lines.
How to measure the roofline
Measure every horizontal run (gutters and eaves) and every sloped edge (gables and rakes) with a tape or laser measure, or pace it off on the ground and add the vertical heights.
Add the distance from the last run to the nearest outdoor outlet. Then add about 10% for corners, drops and mistakes.
For C9 at 12-inch spacing, you need about one bulb per foot. Buy commercial spools cut to length, or full strands, and plan where the plugs land before you climb.
