Christmas lights on a portable power station

• LED strings, net lights, and projectors list watts (or volts × amps) on the plug transformer or tag. Add every item you’ll run at the same time. QuietWatt will not invent a “typical” string wattage.
• Old incandescent mini-lights draw far more per string than LED — if the label shows a big number, that is your runtime problem, not the station’s.
• Inflatables run a blower fan all night. Small motor, steady draw — read the label and leave continuous-watt headroom. Decoder: peak vs continuous watts.
• Animated / music controllers can vary their draw. Meter them with a plug-in watt meter if you can; plan on the higher reading.
• Pure sine output is the safer story for transformers, controllers, and blower motors — pure sine wave.

Hours ≈ (station Wh × ~0.85) ÷ total running watts. The ~0.85 is a planning allowance for inverter losses, not a spec. Station Wh comes from the official listing.

Worked example (arithmetic only, not a product claim): a 1,000 Wh pack × 0.85 = 850 usable Wh. At a measured 50 W display, that’s about 17 hours; at 150 W, about 5.7 hours; at 400 W, about 2 hours. Swap in your own label watts and your station’s listed Wh.

• Run lights for the hours people actually see them (dusk to bedtime), not until sunrise. A plug-in outdoor timer or smart plug on the station’s AC outlet is the cheapest “extra Wh” you can buy.
• Watch idle draw: an AC inverter left on with nothing useful plugged in still uses power. Many stations have an AC auto-off or app setting — confirm on your listing. App notes: app / Wi-Fi / Bluetooth stations.
• Daytime solar top-up works in NZ / Australian December sun if you have panels — see how many solar panels and AC vs solar charging speed.

• Keep the station dry and ventilated. Unless the official listing states a weather rating that covers your setup, treat it as an indoor device: under a porch, in a garage doorway, or in a ventilated weather box — never sitting in rain or on wet grass.
• Use outdoor-rated lights and cords and keep connections off the ground. Don’t overload one string chain beyond what the light maker’s label allows.
• Heat: summer Christmas in NZ / Australia means hot afternoons. Don’t bake the station in direct sun — hot garage / storage.
• Not electrical advice. For a permanent outdoor outlet, hire a licensed electrician. Never backfeed the house.

• EcoFlow RIVER 3 series — small, light; fine for a few LED strings on a timer. Thin for inflatables all night.
• Anker SOLIX C1000 — mid ~1 kWh class; a common “whole evening” size for LED displays.
• BLUETTI Elite 100 V2 — listing shows 1,024 Wh (checked Oct 2026); mid class for strings + a small inflatable.
• Jackery Explorer 1000 v2 — mid class; confirm Wh and output on listing.
• EcoFlow DELTA 3 Plus — expandable; for bigger displays you want to run several nights between charges.