Callsun 200W (2 x 100W) 2-Pack
#16 in 150 W and upFull review
A good-value pair of compact 100 W panels for a van, small RV or boat where roof space comes in odd shapes. Pair it with an MPPT controller to get the full output.
Amazon $129.99$129.99
The Callsun 200W (2 x 100W) 2-Pack is the better rigid solar panel overall, rated 4.3 to 3.7. The Callsun 200W (2 x 100W) 2-Pack leads on value and efficiency. The Callsun 200W (2 x 100W) 2-Pack costs $50 less ($129.99 vs $179.99).
Renogy 200W N-Type Bifacial
#43 in 150 W and upFull review
A good 200 W panel for an RV roof or ground mount where shade from vents or trees is a worry, paired with an MPPT controller or a power station.
Amazon $179.99$179.99
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 Callsun 200W (2 x 100W) 2-Pack for value ($0.65 per rated watt vs $0.90 per rated watt) and efficiency (21.9% module efficiency (from size and rated power) vs 19.9% module efficiency).
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 | Callsun 200W (2 x 100W) 2-Pack | Renogy 200W N-Type Bifacial |
|---|---|---|
| Overall rating | 4.3/5 | 3.7/5 |
| Value 45% | 81 $0.65 per rated watt | 57 $0.90 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 IP68, 10-year warranty | 100 IP68, 10-year warranty |
| Efficiency 15% | 78 21.9% module efficiency (from size and rated power) | 38 19.9% module efficiency |
Specifications
| Callsun 200W (2 x 100W) 2-Pack | Renogy 200W N-Type Bifacial | |
|---|---|---|
| Output | ||
| Rated power | 200 W | 200 W |
| Module efficiency | 21.9% (rated power over panel area) | 19.9% |
| Claimed efficiency | 25% (as published on Callsun's product page and Amazon; the user manual's table gives 25.6% cell efficiency) | 25% (cell efficiency, "up to"; datasheet module efficiency 19.9%) |
| Cells | Monocrystalline (N-type, 16BB) | Monocrystalline (N-type, 16BB, half-cut, 80 cells, wired as two parallel halves for shade tolerance) |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 26 V | 29.6 V |
| Voltage at max power (Vmp) | 22.7 V | 25 V |
| Short-circuit current (Isc) | 4.6 A | 8.7 A |
| Current at max power (Imp) | 4.4 A | 8 A |
| Voc temperature coefficient | -0.2%/°C | -0.3%/°C |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | Solar connectors | Solar connectors (IP68) |
| Build | ||
| Weight | - | 22.7 lb (10.3 kg) |
| Dimensions | 31.1 x 22.8 x 1.2 in (each panel) | 51.7 x 30.1 x 1.2 in |
| Frame | anodized aluminum alloy | anodized aluminum alloy |
| Glass | 3.2 mm tempered | 3.2 mm tempered |
| Junction box rating | IP68 | IP68 |
| Warranty | 10 years | 10 years |
| Output warranty | 84.5% output after 25 years | 25-year power output warranty |
| Released | - | 2026-06 |