How long will a VTOMAN FlashSpeed 1500 run LED Christmas tree lights (500 bulbs)?
About 24 hours — 23 h 56 min typically, from 22 h 32 min in the worst case to 25 h 20 min at best. That assumes LED Christmas tree lights (500 bulbs) pulling 35 W continuously, plus the station's 12 W AC mains socket overhead — 47 W in total out of 1,125 usable watt-hours.
About a sixth of the same tree in old incandescent bulbs, and cool enough to touch.
The numbers
| Setup | Average draw | Cautious | Typical | Best case |
|---|---|---|---|---|
| 1 × LED Christmas tree lights (500 bulbs), UK 230 V | 47 W | 22 h 32 min | 23 h 56 min | 25 h 20 min |
| 2 × LED Christmas tree lights (500 bulbs), UK 230 V | 82 W | 12 h 55 min | 13 h 43 min | 14 h 32 min |
| 1 × LED Christmas tree lights (500 bulbs), US 120 V | 47 W | 22 h 32 min | 23 h 56 min | 25 h 20 min |
- 3 nights of eight hours, or 1 days of continuous running.
- Usable energy: 1,125 Wh of the 1,548 Wh on the box, after chemistry, inverter losses and the reserve.
- To keep it going for a full 24 hours you would need about 1,552 Wh of rated capacity — 1× this station.
- Start-up: the LED Christmas tree lights (500 bulbs) asks for 35 W at switch-on against this station's 3,000 W peak — comfortable.
Buy the VTOMAN FlashSpeed 1500
What changes the answer
| If instead… | Typical runtime | Change |
|---|---|---|
| The pack is two years old | 22 h 1 min | -8% |
| The pack is five years old | 19 h 9 min | -20% |
| It is −10 °C outside | 20 h 21 min | -15% |
| You run it flat, no reserve | 26 h 36 min | +11% |
| You keep 20% back | 21 h 17 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 VTOMAN FlashSpeed 1500 does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| EcoFlow DELTA Pro | 3,600 | 2 days 1 h | £2,499 / $2,699 |
| EcoFlow DELTA Pro 3 | 4,096 | 2 days 6 h | £2,799 / $3,199 |
| Anker SOLIX F3800 | 3,840 | 2 days 5 h | £2,999 / $3,499 |
| Zendure SuperBase V4600 | 4,608 | 2 days 13 h | £2,999 / $4,999 |
The cheapest step up: EcoFlow DELTA Pro
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Smaller options that still work
| Station | Wh | Typical | Weight | Indicative price |
|---|---|---|---|---|
| Pecron E1500LFP | 1,536 | 23 h 45 min | 17.4 kg | — / $549 |
| Bluetti AC240 | 1,536 | 22 h 47 min | 33 kg | £1,099 / $999 |
| Bluetti AC180P | 1,440 | 22 h 16 min | 16 kg | £899 / $649 |
| Jackery Explorer 1500 Pro | 1,512 | 22 h 9 min | 17 kg | — / $1,699 |
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