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Inverter Split Phase Listings Compared: 8 Models by Watts per Dollar

Which of these models the maker lists as split phase, which one ranks #1 of 8 on watts per dollar, and what each one costs at its store.

Published October 19, 2026. Prices as of October 19, 2026; each product page shows today's prices.

Renogy 3000W 12V Pure Sine Wave Inverter

Which inverter here has the most watts per dollar, and which ones are listed as split phase?

The Renogy 3000W 12V Pure Sine Wave Inverter ranks #1 of 8 on value in this article, at 7.23 W/$ at its best current price. EG4 Electronics lists the phase of both the FlexBOSS21 Hybrid Inverter and the 6000XP Off-Grid Inverter as split.

The FlexBOSS21 Hybrid Inverter ranks #7 of 8 at 3.61 W/$, and the 6000XP Off-Grid Inverter ranks #8 of 8 at 3.16 W/$. If your wiring calls for split phase output, confirm the phase on the maker's spec sheet before you buy.

At a glance
ProductBest current priceWatts per dollarValue rank
Renogy 3000W 12V Pure Sine Wave InverterRenogy 3000W 12V Pure Sine Wave Inverter$414.99 at Renogy7.23 W/$#1 of 8
Renogy 3000W 12V Pure Sine Wave Inverter with UPS Transfer SwitchRenogy 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch$461.99 at Renogy6.49 W/$#2 of 8
Renogy 1000W 12V Pure Sine Wave InverterRenogy 1000W 12V Pure Sine Wave Inverter$175.99 at Renogy5.68 W/$#3 of 8
Renogy 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in BluetoothRenogy 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth$364.99 at Renogy5.48 W/$#4 of 8
Renogy 3500W 48V Solar Inverter ChargerRenogy 3500W 48V Solar Inverter Charger$769.99 at Renogy4.55 W/$#5 of 8
Renogy 1000W 12V Pure Sine Wave Inverter with UPS Transfer SwitchRenogy 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch$269.99 at Renogy3.70 W/$#6 of 8
EG4 Electronics FlexBOSS21 Hybrid Inverter$4,435.59 at A1 SolarStore3.61 W/$#7 of 8
EG4 Electronics 6000XP Off-Grid Inverter$1,898.27 at A1 SolarStore3.16 W/$#8 of 8
  1. 3000W 12V Pure Sine Wave Inverter7.23 W/$
  2. 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch6.49 W/$
  3. 1000W 12V Pure Sine Wave Inverter5.68 W/$
  4. 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth5.48 W/$
  5. 3500W 48V Solar Inverter Charger4.55 W/$
  6. 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch3.70 W/$
  7. FlexBOSS21 Hybrid Inverter3.61 W/$
  8. 6000XP Off-Grid Inverter3.16 W/$
Watts per dollar at each product's best current price. A longer bar is better value.

How does the Renogy 3000W 12V Pure Sine Wave Inverter reach #1 of 8 on value?

At Renogy, the 3000W 12V Pure Sine Wave Inverter costs $414.99, which works out to 7.23 W/$. Renogy rates it for 3000 W of continuous AC output on a 12 V battery. Its surge rating is 6000 W, with a listed surge duration of 1 s.

At 12.5 lb, it falls in the easy to carry (under 30 lb) weight class. It also clears the large-load mark of 2000 W or more of continuous AC output.

Strengths

  • Weight class: easy to carry (under 30 lb)
  • Large-load output: 2000 W or more of continuous AC output

What changes in the 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch?

The 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch costs $461.99 at Renogy, against $414.99 for the model without the switch, and its listed surge duration is 2 s rather than 1 s. That gives it 6.49 W/$ and a rank of #2 of 8.

It keeps the 3000 W continuous rating and the 6000 W surge rating of the model without the switch. It is listed at 14.8 lb, still inside the easy to carry (under 30 lb) class.

How much does the Renogy 1000W 12V Pure Sine Wave Inverter weigh?

The 1000W 12V Pure Sine Wave Inverter weighs 6 lb. That puts it in the easy to carry (under 30 lb) group. Renogy lists 1000 W of continuous output, a 2000 W surge and a surge duration of 1 s, all on a 12 V battery.

At $175.99 at Renogy, it comes to 5.68 W/$, which ranks #3 of 8. Add up the watts of everything you plan to run at the same time, and compare that total with the continuous rating.

  1. 1000W 12V Pure Sine Wave Inverter6 lb
  2. 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch8.2 lb
  3. 3000W 12V Pure Sine Wave Inverter12.5 lb
  4. 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth12.8 lb
  5. 3000W 12V Pure Sine Wave Inverter with UPS Transfer Switch14.8 lb
  6. 3500W 48V Solar Inverter Charger23.8 lb
  7. 6000XP Off-Grid Inverter52.9 lb
  8. FlexBOSS21 Hybrid Inverter121 lb
Weight as the makers list it, lightest first. A shorter bar is lighter.

Strengths

  • Weight class: easy to carry (under 30 lb)

Where does the Renogy model with UPS and Bluetooth land on price?

The 2000W 12V Pure Sine Wave Inverter with UPS Transfer Switch and Built-in Bluetooth sells for $364.99 at Renogy. That is 5.48 W/$, which places it #4 of 8 on value here. On a 12 V battery, it is rated for 2000 W continuous, with a 4000 W surge and a surge duration of 2 s.

Its rating meets the large-load mark of 2000 W or more of continuous AC output. Weight is 12.8 lb.

What sets the Renogy 3500W 48V Solar Inverter Charger apart?

The 3500W 48V Solar Inverter Charger lists a 48 V battery, while each of the other Renogy models here lists 12 V. Its continuous rating is 3500 W, and Renogy gives it an IP20 enclosure rating. It weighs 23.8 lb, which keeps it in the easy to carry (under 30 lb) class.

The price at Renogy is $769.99. That buys 4.55 W/$ and a value rank of #5 of 8.

Strengths

  • Weight class: easy to carry (under 30 lb)

What does the 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch cost?

The 1000W 12V Pure Sine Wave Inverter with UPS Transfer Switch costs $269.99 at Renogy, against $175.99 for the 1000W 12V Pure Sine Wave Inverter. That price comes to 3.70 W/$ and ranks #6 of 8. Renogy gives it the same 1000 W continuous and 2000 W surge ratings as the model without the switch, but a surge duration of 2 s rather than 1 s.

Its listed weight is 8.2 lb, while the version without the switch is 6 lb. Both fall in the easy to carry (under 30 lb) class.

What does the FlexBOSS21 Hybrid Inverter offer as a split phase hybrid?

According to EG4 Electronics, the FlexBOSS21 Hybrid Inverter is a split phase, hybrid inverter with a 240 V AC output. EG4 Electronics rates it for 16000 W of continuous AC output, or 12000 W on battery only. It lists a 24000 W surge rating with a surge duration of 0.5 s.

The price at A1 SolarStore is $4,435.59, or 3.61 W/$. For solar, EG4 Electronics lists 3 MPPT trackers. The MPPT voltage range is 120 V to 440 V, and the PV input voltage is at most 600 V.

The listed maximum recommended PV array is 21000 W. On the battery side, it is rated at 51.2 V nominal, with charge and discharge currents of at most 250 A each. Its listed maximum UPS switchover time is 20 ms.

It weighs 121 lb, so it is in the heavy (over 50 lb) class. The case measures 30.43 in high, 22.28 in wide and 11.22 in deep, with a NEMA 4X enclosure rating. Its listed certifications are UL1741, SA, SB, and the warranty runs 10 years.

The operating range runs from -25 C to 60 C.

Strengths

  • Large-load output: 2000 W or more of continuous AC output
  • UPS switchover speed: 20 ms or less

Gaps

  • Weight class: heavy (over 50 lb)

How does the 6000XP Off-Grid Inverter compare with the FlexBOSS21 Hybrid Inverter?

The 6000XP Off-Grid Inverter costs $1,898.27 at A1 SolarStore, less than the $4,435.59 the store asks for the FlexBOSS21 Hybrid Inverter. Continuous AC output is rated at 6000 W, with a 240 V AC output and a split phase listed by EG4 Electronics. Its surge rating is 12000 W, and its listed surge duration is 3.5 s, against 0.5 s for the FlexBOSS21 Hybrid Inverter.

It has 2 MPPT trackers. The listed maximum solar input is 8000 W, and the recommended PV array is up to 10000 W. Its MPPT voltage range is 120 V to 385 V, with a PV input voltage of at most 480 V.

EG4 Electronics lists lead-acid or lithium batteries at 48 V nominal. Charge current is at most 125 A, and discharge current is at most 140 A. The listed maximum UPS switchover time is 15 ms.

At 52.9 lb, it also lands in the heavy (over 50 lb) class, while the FlexBOSS21 Hybrid Inverter is 121 lb. Its warranty is 5 years. The enclosure rating is IP20, and the operating range is 0 C to 45 C.

How do you choose among these inverters?

Start with the phase your wiring needs. EG4 Electronics lists the FlexBOSS21 Hybrid Inverter and the 6000XP Off-Grid Inverter as split phase. Next, match the battery voltage of the inverter to the battery bank you own or plan to buy.

For the most watts per dollar, the 3000W 12V Pure Sine Wave Inverter ranks #1 of 8 at 7.23 W/$. Check the weight class too if you plan to move the unit. Prices change, so compare the price at each store on the day you buy.

Guides to help you choose

What size inverter do I need?Running and starting watts, headroom for heat, and the battery current it draws.Off-grid or hybrid inverter: which do you need?What each type does, and how to read output, surge, battery voltage and grid ratings.Pure sine wave vs modified sine waveHow the two waveforms differ, and which devices can have trouble on a modified sine wave.Solar panels in series or parallelWhich wiring suits your charger, your cable run and your roof.