Renogy ShadowFlux 120W Rigid
#6 in Under 150 WFull review
For a van or small RV roof where vents, racks or trees shade part of the panel. With clear sun all day, a standard 100 W panel costs less per watt.
Amazon $116.99$116.99
The Renogy ShadowFlux 120W Rigid rates 3.7 among under 150 W rigid solar panels; the Newpowa 150W 12V Mono rates 2.9 among 150 W and up ones. The Renogy ShadowFlux 120W Rigid costs $20.73 less ($116.99 vs $137.72).
Newpowa 150W 12V Mono
#59 in 150 W and upFull review
A middle size for a 12 V system where a 100 W panel is too little and a 200 W panel won’t fit. Buy it from Newpowa’s own store, where it costs less than on Amazon.
Amazon $162.99 Newpowa $137.72$137.72
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.
Scores side by side
These two sit in different size classes (under 150 W and 150 W and up), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Renogy ShadowFlux 120W Rigid | Newpowa 150W 12V Mono |
|---|---|---|
| Overall rating | 3.7/5 | 2.9/5 |
| Value 45% | 73 $0.97 per rated watt | 55 $0.92 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 67 IP67, 5-year warranty | 7 no IP rating, 2-year warranty |
| Efficiency 15% | 34 19.7% module efficiency (from size and rated power) | 40 20% module efficiency (from size and rated power) |
Specifications
| Renogy ShadowFlux 120W Rigid | Newpowa 150W 12V Mono | |
|---|---|---|
| Output | ||
| Rated power | 120 W | 150 W |
| Module efficiency | 19.7% (rated power over panel area) | 20% (rated power over panel area) |
| Claimed efficiency | 25% (cell efficiency; datasheet module efficiency 20.7%) | 22.6% (datasheet "maximum efficiency" (not labeled cell or module)) |
| Cells | Monocrystalline (N-type, 16BB, cell-level bypass (ShadowFlux)) | Monocrystalline (10BB, 182 mm cells, 60 cells) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 33.7 V | 20.4 V |
| Voltage at max power (Vmp) | 28.9 V | 17.4 V |
| Short-circuit current (Isc) | 4.6 A | 9.1 A |
| Current at max power (Imp) | 4.2 A | 8.6 A |
| Voc temperature coefficient | -0.2%/°C | -0.4%/°C |
| Connections | ||
| Output connector | MC4 | Pre-attached 3 ft leads with male/female solar connectors |
| Build | ||
| Weight | 15.9 lb (6.8 kg) | 18.5 lb (8.4 kg) |
| Dimensions | 41.42 x 22.76 x 1.18 in | 38.6 x 30.1 x 1.4 in |
| Frame | anodized aluminum alloy | anodized aluminum |
| Glass | tempered | low-iron tempered |
| Junction box rating | IP67 | - |
| Warranty | 5 years | 2 years |
| Output warranty | 95% output for 5 years, 90% for 10 years, 80% for 25 years | 90% output for 10 years, 80% for 25 years |
| Released | 2025-08 | - |