EcoFlow 220W Bifacial vs. BLUETTI PV350
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Top picks at a glance
Best for the most watts per panelBLUETTI PV350Check price on Amazon
Best for easy carryingEcoFlow 220W BifacialCheck price on Amazon
If you want the most power from one panel and can handle the bulk, choose the BLUETTI PV350: it is rated at 350 W, 130 W more than the EcoFlow 220W Bifacial. If you move your panel often, choose the EcoFlow, which weighs 15.4 lb against the PV350’s 32.4 lb.
The numbers below are the ones EcoFlow and BLUETTI publish on their US spec pages, checked in November 2026. We haven’t laid either panel out in the sun, so this is a comparison of specs only.
BLUETTI PV350: more watts, more panel
BLUETTI PV350
- Rated power
- 350 W
- Open-circuit voltage
- 44 V
- Weight
- 32.4 lb
Who it's for: Owners of mid-size and large stations who want 350 W from one panel and have room to unfold it.
Strengths
- 350 W from a single panel
- Standard MC4 connectors
- Up to 23.4% conversion efficiency
Weaknesses
- Heavy at 32.4 lb
- 12-month warranty
- BLUETTI's page lists both IP65 and IP67
The PV350 is rated at 350 W with up to 23.4% conversion efficiency. Its open-circuit voltage is 44 V, with Vmp at 37 V and Imp at 9.5 A. It uses standard MC4 connectors, so it plugs into most stations with an MC4 solar cable. An ETFE coating and reinforced fiberglass make up the surface.
Size is the catch. It weighs 32.4 lb and unfolds to 110.6 x 30.9 in, so you need a clear patch of ground or roof. Folded, it is 29.3 x 30.9 x 2 in. BLUETTI’s page also contradicts itself on water protection: the description says IP67 and the FAQ says IP65, so plan around the lower figure. The warranty is 12 months.
The 44 V rating also limits wiring. Two PV350s in series reach 88 V open-circuit, above the 60 V top of the solar range on stations such as the BLUETTI Apex 300, so check your station’s input range before chaining them.
EcoFlow 220W Bifacial: lighter, with a rear side
EcoFlow 220W Bifacial
- Rated power
- 220 W front
- Open-circuit voltage
- 21.5 V
- Water rating
- IP68
- Weight
- 15.4 lb
Who it's for: Buyers who want a little more rated power from a portable panel, and can use it where light reflects behind it.
Strengths
- Highest rated power of the 200 W class panels here
- 25% listed efficiency
- 175 W rear rating
Weaknesses
- Rear output depends on reflected light
- Three in series exceed a 60 V limit
The EcoFlow panel is rated at 220 W (±5 W) on the front and 175 W on the rear, from N-type TOPCon cells at 25% efficiency. The rear only helps when light reflects back onto it from the surface below. Open-circuit voltage is 21.5 V, with Vmp at 18.4 V.
At about 15.4 lb, it is far easier to carry. Folded, it is 24.2 x 23.2 x 1.3 in; unfolded, 24.2 x 84.8 in. An integrated stand adjusts from 30 to 60 degrees, with a solar angle guide. It is rated IP68, and the box includes a solar-to-XT60i charging cable and a protective bag.
Its limits: the warranty is 12 months in the US, the same as the PV350’s, and three panels in series exceed a 60 V limit. The included cable ends in XT60i, so stations with other inputs may need a different cable.
How do the two panels compare?
| BLUETTI PV350 | EcoFlow 220W Bifacial | |
|---|---|---|
| Rated power | 350 W | 220 W front, 175 W rear |
| Efficiency | Up to 23.4% | 25% |
| Open-circuit voltage | 44 V | 21.5 V |
| Connector | MC4 | Photovoltaic connectors, XT60i cable included |
| Water rating | IP65 or IP67 (BLUETTI lists both) | IP68 |
| Weight | 32.4 lb | 15.4 lb |
| Unfolded size | 110.6 x 30.9 in | 24.2 x 84.8 in |
| Warranty | 12 months | 12 months |
Which gives more watts per pound?
Divide rated front power by weight, and the EcoFlow comes out ahead: about 14.3 W per pound against about 10.8 W for the PV350. Put another way, the PV350 adds 130 W of rating for 17 lb of extra weight. If the panel stays on an RV roof rack or in one spot at home, that weight hardly matters. If you carry it to a campsite, it does.
How to choose
- One panel, as much power as possible: the PV350’s 350 W rating is the higher of the two.
- You carry the panel by hand: the EcoFlow 220W weighs less than half as much.
- Bright, reflective ground: the EcoFlow’s 175 W rear rating can add output there.
- Wet weather: the EcoFlow lists a single IP68 rating; BLUETTI’s page gives two different ratings.
- Series wiring: check your station’s top solar voltage; two PV350s reach 88 V and three EcoFlow panels reach 64.5 V.
Make sure the connector and voltage match your station’s solar input before you buy.
FAQ
How much more power does the BLUETTI PV350 have than the EcoFlow 220W Bifacial?
The BLUETTI PV350 is rated at 350 W, 130 W more than the EcoFlow 220W Bifacial’s 220 W front rating. The EcoFlow also lists 175 W on its rear side, which only helps with reflected light.
Is the BLUETTI PV350 waterproof?
BLUETTI’s US page lists two ratings for the PV350: IP67 in the description and IP65 in the FAQ. Plan around IP65 until BLUETTI clarifies. The EcoFlow 220W Bifacial is rated IP68.
Can I connect two BLUETTI PV350 panels in series?
Two PV350s in series reach 88 V open-circuit, from 44 V each. That is above the 60 V limit on many station solar inputs, such as the BLUETTI Apex 300’s 12-60V range, so check your station’s input range first.
Which panel is easier to carry?
The EcoFlow 220W Bifacial, at about 15.4 lb against the BLUETTI PV350’s 32.4 lb. It also folds to 24.2 x 23.2 x 1.3 in, smaller than the PV350’s 29.3 x 30.9 x 2 in.
