How long will a VTOMAN FlashSpeed 1500 run incandescent Christmas tree lights (500 bulbs)?
About 5.2 hours — 5 h 13 min typically, from 4 h 54 min in the worst case to 5 h 31 min at best. That assumes incandescent Christmas tree lights (500 bulbs) pulling 204 W continuously, plus the station's 12 W AC mains socket overhead — 216 W in total out of 1,125 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 | 216 W | 4 h 54 min | 5 h 13 min | 5 h 31 min |
| 2 × incandescent Christmas tree lights (500 bulbs), UK 230 V | 420 W | 2 h 31 min | 2 h 41 min | 2 h 50 min |
| 1 × incandescent Christmas tree lights (500 bulbs), US 120 V | 216 W | 4 h 54 min | 5 h 13 min | 5 h 31 min |
- 0.7 nights of eight hours, or 0.22 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 7,133 Wh of rated capacity — 4.6× this station.
- Start-up: the incandescent Christmas tree lights (500 bulbs) asks for 204 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 | 4 h 47 min | -8% |
| The pack is five years old | 4 h 10 min | -20% |
| It is −10 °C outside | 4 h 26 min | -15% |
| You run it flat, no reserve | 5 h 47 min | +11% |
| You keep 20% back | 4 h 38 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 VTOMAN FlashSpeed 1500 does, cheapest first.
| Station | Wh | Typical | Indicative price |
|---|---|---|---|
| EcoFlow DELTA Pro | 3,600 | 11 h 47 min | £2,499 / $2,699 |
| EcoFlow DELTA Pro 3 | 4,096 | 13 h 17 min | £2,799 / $3,199 |
| Anker SOLIX F3800 | 3,840 | 12 h 34 min | £2,999 / $3,499 |
| Zendure SuperBase V4600 | 4,608 | 14 h 57 min | £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 | 5 h 10 min | 17.4 kg | — / $549 |
| Bluetti AC240 | 1,536 | 5 h 7 min | 33 kg | £1,099 / $999 |
| Bluetti AC180P | 1,440 | 4 h 51 min | 16 kg | £899 / $649 |
| Jackery Explorer 1500 Pro | 1,512 | 4 h 49 min | 17 kg | — / $1,699 |
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