12V DC to 120V AC pure sine wave inverters from 1000W to 3000W, compared by continuous and peak output, weight and price.
ALLWEI 1000W Pure Sine Wave Inverter — read reviewA 12V-to-120V pure sine wave inverter rated at 1000W continuous with a 2000W peak surge, listed at $109 and 3.53 lb. It fits 12V battery banks and loads within 1000W, but the page has no spec table, so many details are missing.
ALLWEI 2000W Pure Sine Wave Inverter — read reviewALLWEI's 2000W inverter lists 2000W continuous and a 4000W peak surge from 12V DC to 120V AC, at $169, with a 10-foot cable for remote operation. The page gives no weight or temperature range, and it names 12V battery banks only.
ALLWEI 3000W Pure Sine Wave Inverter — read reviewA 3000W 12V-to-120V pure sine wave inverter with a 6000W peak surge during load start-up, listed at $199 and 9.47 lb. The page says battery connecting cables are not included and that the unit has an ETL UL458 certificate.
A power inverter turns the direct current (DC) of a battery into 120V alternating current (AC) for ordinary plugs. It stores no energy itself, so the number to compare first is watts (W), the rate at which it can deliver power, not watt-hours (Wh), which measure how much energy a battery holds. The three inverters here are all ALLWEI units that list 12V DC in and 110V/120V AC pure sine wave out. They are rated at 1000W, 2000W and 3000W continuous, which is what they can supply steadily, and at 2000W, 4000W and 6000W peak surge, a short burst for starting a load. Listed prices when reviewed on October 23, 2026 were $109, $169 and $199.
Pure sine wave means the output follows the smooth waveform of grid power; the 1000W page says it matches the public grid waveform and suits sensitive devices such as TVs, laptops and refrigerators. Other figures are thin. Efficiency is given only as over 91%, with no load level. Weight is 3.53 lb on the 1000W and 9.47 lb on the 3000W, and the 2000W page gives none. The operating range, 14°F to 104°F, is stated on the 1000W and 3000W only. None of the three has a spec table, so outlet count, DC input current, terminal type and dimensions are not given. All three say 12V battery banks only, and the 3000W page says battery cables are not in the box.
Every inverter here is sold by ALLWEI at allweipower.com, which says it is run by ALLWEI Trading Inc. Shipping is free by ground carrier within the contiguous US, not to Alaska, Hawaii, Puerto Rico or the US Virgin Islands; orders ship in 1 to 2 business days and arrive in 3 to 7. Returns run 30 days from receipt for an unused product in its original packaging with every accessory, after you get an RMA number from support. You pay return shipping unless it is a quality issue, and the refund follows within 14 business days of inspection. Cancelling after an order ships costs round-trip shipping plus a 2.6% card fee, or 3.6% for PayPal. The warranty page lists tiers by model but names none of these three inverters, so ask which period applies.
Look elsewhere if you need a system voltage other than 12V, a full spec table or a stated warranty. The 1000W page's only sizing guide is one example: 750W divided by 12V, times 4 hours, gives 250Ah of battery, so the battery bank sets the run time. We found no independent lab test of any ALLWEI product, and Trustpilot shows one review on an unclaimed profile. The domain was registered on August 29, 2024, though the About page says the ALLWEI brand launched in 2015.
| Review | Price | Output | Weight | Operating range | Protections |
|---|---|---|---|---|---|
| ALLWEI 1000W Pure Sine Wave Inverter | $109 | 1000W continuous, 2000W peak surge | 3.53 lb | 14°F-104°F | 8-fold: low/high voltage, temperature extremes, overload, short-circuit, and more |
| ALLWEI 2000W Pure Sine Wave Inverter | $169 | 2000W continuous, 4000W peak surge | Not given | — | 8-fold, including reverse polarity, and more |
| ALLWEI 3000W Pure Sine Wave Inverter | $199 | 3000W continuous, 6000W peak surge at load start-up | 9.47 lb | 14°F-104°F | Low/high voltage, over/under temperature, overload, over-current, reverse polarity, short-circuit |
Add up the watts of everything you will run at once and compare the total with the continuous rating, not the peak. These three list 1000W, 2000W and 3000W continuous, with start-up surge ratings of 2000W, 4000W and 6000W. The 3000W page names window air conditioners, microwaves and pool pumps as loads, yet another line says it directly powers light loads (small appliances), and the page does not reconcile the two. Ask ALLWEI about your heaviest device.
It describes AC output that follows the smooth waveform of grid power. The ALLWEI 1000W page says its output matches the public grid waveform and is suited to sensitive devices such as TVs, laptops and refrigerators. The pages do not compare it with other inverter types, and we found no independent test showing how any of the three performs.
The pages say 12V battery banks only and name no battery chemistry, DC input current, terminal type or cable size. The 3000W page says battery connecting cables are not included and that it supports parallel batteries and multi-battery switching. The 1000W page's sizing example is 750W divided by 12V, times 4 hours, giving 250Ah. Ask ALLWEI what cables your unit needs.
Only the 3000W page does: it says the inverter has an ETL UL458 certificate. We found no certificate or listing number, so the claim is ALLWEI's own. The 1000W and 2000W pages state no certification. All three pages say 8-fold protection, but only the 3000W page names all eight (low and high voltage, over and under temperature, overload, over-current, reverse polarity, short-circuit); the other two end in 'and more'.
Ground shipping is free within the contiguous US. Orders usually ship in 1 to 2 business days and arrive in 3 to 7. Returns run 30 days from receipt for an unused product in its original packaging, with an RMA number from [email protected]. You pay return shipping unless it is a quality issue, and the refund follows within 14 business days of inspection.
The pages do not say. ALLWEI's warranty page lists tiers of 3+3, 2+1 and 1 year by model, with registration for the extra years, but it names the PPS2400, PPS1200, B200 Pro, PPS600, PPS300, XY-200, XY-100 and CH-100, not these inverters. Ask support which period applies before you order.