Rich Solar MEGA 130 Slim 260W 2-Pack
#54 in 150 W and upFull review
For van and RV owners whose roof only has long, narrow gaps to fill. Anyone with room for standard-width panels gets far more watts for the money.
Amazon $329.99$329.99
The Rich Solar MEGA 130 Slim 260W 2-Pack is the better rigid solar panel overall, rated 3.2 to 3.0. The Rich Solar MEGA 130 Slim 260W 2-Pack leads on durability. The Newpowa 220W 12V Mono wins on value. The Newpowa 220W 12V Mono costs $149.40 less ($180.59 vs $329.99).
Newpowa 220W 12V Mono
#55 in 150 W and upFull review
The most output Newpowa fits in one 12 V panel, for a roof or ground mount with room for a 57 in module. Size the controller and cables for its high current.
Amazon $219.99 Newpowa $180.59$180.59
Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Rich Solar MEGA 130 Slim 260W 2-Pack for durability (IP67, 10-year warranty vs no IP rating, 2-year warranty).
- Choose the Newpowa 220W 12V Mono for value ($0.82 per rated watt vs $1.27 per rated watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 150 W and up rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | Rich Solar MEGA 130 Slim 260W 2-Pack | Newpowa 220W 12V Mono |
|---|---|---|
| Overall rating | 3.2/5 | 3.0/5 |
| Value 45% | 22 $1.27 per rated watt | 65 $0.82 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 100 IP67, 10-year warranty | 7 no IP rating, 2-year warranty |
| Efficiency 15% | 34 19.7% module efficiency | 40 20% module efficiency (from size and rated power) |
Specifications
| Rich Solar MEGA 130 Slim 260W 2-Pack | Newpowa 220W 12V Mono | |
|---|---|---|
| Output | ||
| Rated power | 260 W | 220 W |
| Module efficiency | 19.7% | 20% (rated power over panel area) |
| Claimed efficiency | 19.7% (module efficiency from the datasheet; no cell efficiency published) | 22.4% (datasheet "maximum efficiency" (not labeled cell or module)) |
| Cells | Monocrystalline (16BB, 32 cells) | Monocrystalline (60 cells) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 22.1 V | 20.5 V |
| Voltage at max power (Vmp) | 18.1 V | 17.5 V |
| Short-circuit current (Isc) | 7.6 A | 13.4 A |
| Current at max power (Imp) | 7.2 A | 12.6 A |
| Voc temperature coefficient | -0.3%/°C | -0.4%/°C |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | Solar connectors (IP67) | MC4 |
| Build | ||
| Weight | 34 lb (15.4 kg) | 26.6 lb (12.1 kg) |
| Dimensions | 65.0 x 15.7 x 1.2 in (each panel) | 56.7 x 30.1 x 1.4 in |
| Frame | anodized aluminum alloy | anodized aluminum |
| Glass | 3.2 mm AR-coated tempered | low-iron tempered |
| Junction box rating | IP67 | - |
| Warranty | 10 years | 2 years |
| Output warranty | 25-year limited power output warranty | 90% output for 10 years, 80% for 25 years |
| Released | 2024-11 | 2022-10 |