How long Christmas lights last, and why the rated hours are the wrong number
A 50,000-hour rating works out to two hundred seasons. Something else ends the set first. Here is what, and how to plan around it.
By Sawyer V. · Published
LED lighting is sold on rated hours, and the figures are enormous. Applied to a seasonal display they are also close to meaningless, and it takes one division to see why: a set used for six weeks a year does not run out of rated hours in any timeframe a household cares about.
Something else ends the set. This page does the arithmetic that dismisses the rated-hours number, then covers the four things that genuinely retire a light set and what to do about each.
Wreath & Watt earns a commission on qualifying purchases made through the Amazon links on this page. It costs you nothing and it does not change the order of the picks — here is exactly how we are funded.
The rated-hours number, divided out
The one product here that publishes a rated life is the 150-foot Govee Permanent Pro, at a manufacturer-claimed 50,000 hours. It is worth converting into the unit you actually buy in.
The arithmetic
- Manufacturer claim: 50,000 rated hours
- A seasonal display: 6 hours a night for 40 nights = 240 hours a season
- 50,000 / 240 = 208 seasons
- Run year round at 6 hours a night: 2,190 hours a year
- 50,000 / 2,190 = 22.8 years
At seasonal use, a 50,000-hour rating is 208 seasons. Even run every night of the year it is about 23 years. The rating is not the binding constraint.
That is the whole point of the calculation. If rated hours were what ended a light set, nobody would ever replace one. So the useful question is not how long the LEDs last — it is what fails first.
The four things that actually end a set
- Mechanical damage to the strand. Stapling, tensioning, being pulled off a gutter, being closed in a box under something heavy. This is the leading cause and it is entirely about how the set is fastened and stored.
- Water in a socket. Not rain — standing water in an undrained socket, freezing and thawing. It is why the weep holes on the Wintergreen C9 are a specification worth paying for, and why a published ingress rating matters on anything permanent.
- An unrepairable failure in a sealed set. One dead section on a set with no replaceable bulbs retires the whole strand, regardless of how much rated life the remaining LEDs have. The diagnosis order is on Christmas light troubleshooting.
- Obsolescence, on smart sets. A set that depends on an app depends on that app continuing to exist and continuing to support it. No manufacturer publishes a support window, so we do not print one — but it is a real end-of-life mechanism that a plain string does not have.
Realistic expectations by set type
| Set type | Published rating | What ends it | Replaceable in part? |
|---|---|---|---|
| Permanent track | 50,000 h, IP67, -4 F to 140 F | Controller or app support | Track sections, not individual LEDs |
| Smart string | IP44 | App support, then water ingress | No |
| Commercial C9 | 18 AWG, weep holes | Strand damage | Yes — bulbs unscrew individually |
| LED mini | 100 LEDs, 33 ft | A dead section | No |
| Incandescent mini | 120 V, UL certified | Bulb failures, then running cost | Bulbs, usually |
Note the pattern: the sets with the highest published ratings are the ones whose end of life is least likely to be about the LEDs at all.
Source: Manufacturer listings on Amazon.com, retrieved 2026-09-04.
Where the ingress rating earns its place
For anything that stays outdoors year round, the published ingress rating does more work than the rated hours. The Govee Pro track publishes IP67 with an operating range of −4 F to 140 F, which is a specification about the conditions it is built to survive rather than a claim about how long it glows. The Twinkly string publishes IP44 — rain, not immersion — which is honest and tells you it belongs where water runs off.
The full permanent-lighting comparison, including the dealer-installed option we earn nothing from, is on permanent Christmas lights.
Planning a replacement cycle
Because failures are mechanical rather than scheduled, the sensible approach is an annual inspection rather than a replacement interval.
- Test every set on the ground before it goes up. Faults found in the garage are cheap; faults found on a ladder are not.
- Mark failures at take-down, not at put-up. Tape a label on the reel the moment a set misbehaves — you will not remember in eleven months.
- Replace in April, not December. The stock is there, the weather is workable, and you are not making the decision under pressure.
- Buy one format consistently. Mixed formats across years is how colour temperature drifts visibly across a single roofline.
Storage is the single largest lever on how long a set survives, because most strand damage happens in the box rather than on the house. The method is on how to store Christmas lights, and the reels are on the best light storage reels.
Our picks for this
| # | Product | Best for | Score | Price |
|---|---|---|---|---|
| 1 | No imageGovee Permanent Outdoor Lights Pro, 150 ft, 90 RGBIC LEDs150 ft, 90 RGBIC LEDs, IP67 | A full roofline you never climb again | 8.3/ 10 | Check price #ad · Disclosure |
| 2 | No imageTwinkly Strings, 250 white LEDs, 65 ft, black wire250 AWW LEDs, warm-to-cool tunable, IP44 | Tunable white without the color circus | 7.3/ 10 | Check price #ad · Disclosure |
| 3 | No imageWintergreen Lighting C9 OptiCore LED, 25 bulbs / 25 ft, warm white18 AWG SPT-1 stringer, 12 in spacing | Rooflines you want to look the same in year five | 8.3/ 10 | Check price #ad · Disclosure |
| 4 | No imageNorthlight LED mini lights, 100 count, 33 ft, green wire100 LEDs, 4 in spacing, 33 ft lighted length | Trees, shrubs and wrapping — the workhorse string | 6.3/ 10 | Check price #ad · Disclosure |
| 5 | No imageIncandescent mini lights, 100 count, 20 ft, green wire, UL listed120 V incandescent — roughly 40 W per 100-count stringSkip this | People who genuinely want the old warm glow | 5.3/ 10 | Check price #ad · Disclosure |
Scores are our own weighting of published manufacturer specifications, explained in full on how we research. They are not test results. We have not tested these products.
The picks, in detail
#1 — A full roofline you never climb again
Govee Permanent Outdoor Lights Pro, 150 ft, 90 RGBIC LEDs
150 ft, 90 RGBIC LEDs, IP67
8.3
/ 10
The retail answer to dealer-installed permanent lighting: published IP rating, buy it once, hang it once.
Published specifications
- Length
- 150 ft
- LEDs
- 90 RGBIC, individually addressable
- Ingress rating
- IP67 track, IP65 control box
- Rated life
- 50,000 hours (manufacturer claim)
- Operating range
- -4 F to 140 F
- Control
- App, Alexa, Google Assistant, Matter
Our scoring
- Published specs
- 9 / 10
- Weather tolerance
- 9 / 10
- Control
- 9 / 10
- Density
- 6 / 10
Good
- IP67 is a published, checkable number — most seasonal lighting publishes none
- Spacing works out to one LED every 20 inches, which is the number to compare against a dealer system
- Matter support means it does not depend on one vendor's cloud staying up
Watch out
- It is a one-day install on a ladder, and it is permanent
- 90 LEDs over 150 feet is sparser than a C9 run at 12-inch spacing
Specs from the Govee Amazon listing (ASIN B0CGJ3S8YM), retrieved 2026-09-04.
#2 — Tunable white without the color circus
Twinkly Strings, 250 white LEDs, 65 ft, black wire
250 AWW LEDs, warm-to-cool tunable, IP44
7.3
/ 10
Buy this if you cannot decide between warm and cool white. It is the one product that lets you change your mind later.
Published specifications
- LEDs
- 250 AWW (warm white to cool white)
- Length
- 65 ft
- Wire
- Black
- Ingress rating
- IP44
Our scoring
- Published specs
- 9 / 10
- Weather tolerance
- 6 / 10
- Control
- 9 / 10
- Serviceability
- 5 / 10
Good
- Tunable white settles the warm-vs-cool argument in software instead of at the checkout
- Black wire vanishes against dark siding and bare branches
Watch out
- Costs smart-lighting money for an effect most people set once and never change
Specs from the Twinkly Amazon listing (ASIN B07XQFC4Z7), retrieved 2026-09-04.
#3 — Rooflines you want to look the same in year five
Wintergreen Lighting C9 OptiCore LED, 25 bulbs / 25 ft, warm white
18 AWG SPT-1 stringer, 12 in spacing
8.3
/ 10
The C9 set built like an installer's stock: heavy stringer, replaceable bulbs, drained sockets. Buy it once for the roofline you re-hang every year.
Published specifications
- Bulb
- C9 OptiCore LED, faceted, replaceable
- Stringer
- 18 AWG SPT-1 commercial wire, green
- Spacing
- 12 in — 25 bulbs over 25 ft
- Socket drainage
- Weep holes for wet-weather use
- Rated wattage per string
- Not published by the manufacturer
Our scoring
- Build
- 9 / 10
- Weather tolerance
- 9 / 10
- Serviceability
- 9 / 10
- Published specs
- 6 / 10
Good
- Commercial 18 AWG stringer instead of the 22 AWG most retail sets use
- Bulbs unscrew individually, so one dead bulb is a bulb, not a string
- Weep-holed sockets are the detail that decides whether a set survives an ice storm
Watch out
- Costs meaningfully more per foot than a big-box set
- Wattage per string is not published, so you cannot pre-compute load from the listing alone
Specs from the Wintergreen Lighting Amazon listing (ASIN B0776ZCHFX), retrieved 2026-09-04.
#4 — Trees, shrubs and wrapping — the workhorse string
Northlight LED mini lights, 100 count, 33 ft, green wire
100 LEDs, 4 in spacing, 33 ft lighted length
6.3
/ 10
The default mini string. Buy the count you need for the tree, not the count that was on sale.
Published specifications
- Count
- 100 LED mini bulbs
- Spacing
- 4 in
- Lighted length
- 33 ft
- Wire
- Green
- Rated wattage per string
- Not published by the manufacturer
Our scoring
- Build
- 7 / 10
- Weather tolerance
- 7 / 10
- Serviceability
- 5 / 10
- Published specs
- 6 / 10
Good
- 4-inch spacing over 33 feet is the density most tree-wrapping guidance assumes
- Green wire disappears into evergreen far better than white
- LED draw means you can run many strings on one circuit — see our amp guide
Watch out
- Wattage is not printed on the listing, so you have to read the tag on the string itself
Specs from the Amazon listing (ASIN B073WJBKPX), retrieved 2026-09-04.
#5 — skip this
Incandescent mini lights, 100 count, 20 ft, green wire, UL listed
120 V incandescent — roughly 40 W per 100-count string
5.3
/ 10
Skip this unless the incandescent glow is specifically what you are buying. On a 15 A circuit it costs you three quarters of your strings.
Published specifications
- Count
- 100 incandescent mini bulbs
- Lighted length
- 20 ft
- Voltage
- 120 V, UL certified
- Twinkle
- No twinkle function
- Typical draw
- About 40 W / 0.33 A per string (industry convention for a 100-count mini set)
Our scoring
- Build
- 5 / 10
- Weather tolerance
- 5 / 10
- Serviceability
- 4 / 10
- Published specs
- 7 / 10
Good
- The color rendering LEDs still approximate rather than match
- Cheap enough to treat as consumable
Watch out
- Draws roughly ten times the watts of an equivalent LED string, which caps a 15 A circuit at about 36 strings
- Bulb failures cascade in series sections
Count, length and voltage from the Amazon listing (ASIN B08BJW25WK), retrieved 2026-09-04. The 40 W figure is the standard published draw for a 100-count incandescent mini string and is the same figure used in our load arithmetic.
Questions
›How many years do LED Christmas lights last?
Long enough that the rated hours are not the limit. A published 50,000-hour rating divided by a 240-hour season is 208 seasons. What ends a set is strand damage, water in a socket, an unrepairable dead section, or app obsolescence on a smart set.
›Do Christmas lights wear out in storage?
Not electrically, but mechanically yes — most strand damage and most loose bulbs happen in the box rather than on the house. Winding onto reels rather than coiling into a heap is the single biggest lever on how long a set survives.
›Is IP67 better than IP44 for Christmas lights?
For anything that stays outdoors year round, yes: IP67 means dust-tight and able to survive temporary immersion, where IP44 covers rain but not standing water. For a set that comes down in January, IP44 is often sufficient.
›When should I replace my Christmas lights?
On condition, not on a schedule. Retire a set with cracked insulation, a deformed or discoloured socket, a scorched plug, or a dead section on a strand with no replaceable bulbs. Do the buying in April rather than December.
Sources
- Govee Permanent Outdoor Lights Pro listing (ASIN B0CGJ3S8YM) — 50,000 hour manufacturer claim, IP67, -4 F to 140 F
- Twinkly Strings 250 white listing (ASIN B07XQFC4Z7) — IP44, 250 AWW LEDs, 65 ft
- Wintergreen Lighting C9 OptiCore listing (ASIN B0776ZCHFX) — weep-holed sockets, replaceable bulbs
- Northlight LED mini listing (ASIN B073WJBKPX) — 100 LEDs, 33 ft
- Incandescent mini listing (ASIN B08BJW25WK) — 120 V, UL certified
- Season conversion — 50,000 rated hours divided by a 240-hour season (6 hours x 40 nights) — arithmetic printed above
We have not tested these products. Every figure above comes from a published manufacturer specification or from arithmetic shown on this page, and anything a maker does not publish is printed as unavailable rather than estimated. How that works, and what we will not claim, is set out on how we research.