How long will a Goal Zero Yeti 300 run incandescent Christmas tree lights (500 bulbs)?
About an hour — 1 h 1 min typically, from 58 min in the worst case to 1 h 5 min at best. That assumes incandescent Christmas tree lights (500 bulbs) pulling 204 W continuously, plus the station's 8 W AC mains socket overhead — 212 W in total out of 216 usable watt-hours.
The old bulbs draw about six times what LEDs do for the same tree, and run hot.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × incandescent Christmas tree lights (500 bulbs), UK 230 V | 212 W | 58 min | 1 h 1 min | 1 h 5 min |
| 2 × incandescent Christmas tree lights (500 bulbs), UK 230 V | 416 W | — | — | — |
| 1 × incandescent Christmas tree lights (500 bulbs), US 120 V | 212 W | 58 min | 1 h 1 min | 1 h 5 min |
- 0.1 nights of eight hours, or 0.04 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 7,001 Wh of rated capacity — 23.6× this station.
- Start-up: the incandescent Christmas tree lights (500 bulbs) asks for 204 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 runtime | Change |
|---|---|---|
| The pack is two years old | 56 min | -8% |
| The pack is five years old | 49 min | -21% |
| It is −10 °C outside | 52 min | -15% |
| You run it flat, no reserve | 1 h 8 min | +11% |
| You keep 20% back | 55 min | -11% |
If you need it to run longer
These run incandescent Christmas tree lights (500 bulbs) for at least twice as long as the Goal Zero Yeti 300 does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| Jackery Explorer 1000 v2 | 1,070 | 3 h 38 min | £419 / $549 |
| UGREEN PowerRoam 600 | 680 | 2 h 19 min | £449 / $499 |
| Bluetti EB70S | 716 | 2 h 26 min | £449 / $429 |
| Bluetti AC70 | 768 | 2 h 37 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
| Station | Wh | Typical | Weight | Indicative price |
|---|---|---|---|---|
| Bluetti Elite 30 V2 | 288 | 1 h | 4.3 kg | £229 / $449 |
| Jackery Explorer 300 Plus | 288 | 59 min | 3.8 kg | £319 / $300 |
| Anker SOLIX C300 | 288 | 59 min | 4.4 kg | £229 / $249 |
| EcoFlow RIVER 3 Plus | 286 | 59 min | 4.7 kg | £219 / $269 |
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