How Long Will It Run

How long will a Goal Zero Yeti 300 run LED Christmas tree lights (500 bulbs)?

About 5 hours — 5 h 1 min typically, from 4 h 43 min in the worst case to 5 h 19 min at best. That assumes LED Christmas tree lights (500 bulbs) pulling 35 W continuously, plus the station's 8 W AC mains socket overhead — 43 W in total out of 216 usable watt-hours.

About a sixth of the same tree in old incandescent bulbs, and cool enough to touch.

The numbers

Goal Zero Yeti 300 · 297 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × LED Christmas tree lights (500 bulbs), UK 230 V43 W4 h 43 min5 h 1 min5 h 19 min
2 × LED Christmas tree lights (500 bulbs), UK 230 V78 W2 h 36 min2 h 46 min2 h 56 min
1 × LED Christmas tree lights (500 bulbs), US 120 V43 W4 h 43 min5 h 1 min5 h 19 min
  • 0.6 nights of eight hours, or 0.21 days of continuous running.
  • Usable energy: 216 Wh of the 297 Wh on the box, after chemistry, inverter losses and the reserve.
  • To keep it going for a full 24 hours you would need about 1,420 Wh of rated capacity — 4.8× this station.
  • Start-up: the LED Christmas tree lights (500 bulbs) asks for 35 W at switch-on against this station's 600 W peak — comfortable.

Buy the Goal Zero Yeti 300

Where to buy

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What changes the answer

If instead…Typical runtimeChange
The pack is two years old4 h 37 min-8%
The pack is five years old4 h 1 min-20%
It is −10 °C outside4 h 16 min-15%
You run it flat, no reserve5 h 35 min+11%
You keep 20% back4 h 28 min-11%

If you need it to run longer

These run LED Christmas tree lights (500 bulbs) for at least twice as long as the Goal Zero Yeti 300 does, cheapest first.

StationWhTypicalIndicative price
Jackery Explorer 1000 v21,07017 h 17 min£419 / $549
UGREEN PowerRoam 60068011 h 14 min£449 / $499
Bluetti EB70S71611 h 34 min£449 / $429
Bluetti AC7076812 h 24 min£449 / $359

The cheapest step up: Jackery Explorer 1000 v2

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.

Smaller options that still work

StationWhTypicalWeightIndicative price
Bluetti Elite 30 V22885 h 18 min4.3 kg£229 / $449
Jackery Explorer 300 Plus2884 h 59 min3.8 kg£319 / $300
Anker SOLIX C3002884 h 52 min4.4 kg£229 / $249
EcoFlow RIVER 3 Plus2864 h 43 min4.7 kg£219 / $269