Newpowa 100W Bifacial 12V
#9 in Under 150 WFull review
A low-cost 100 W panel for a small 12 V system on a van, trailer or shed. The bifacial back adds a little output when the panel is tilted above a light surface.
Amazon $69.99$69.99
The Newpowa 100W Bifacial 12V rates 3.3 among under 150 W rigid solar panels; the Newpowa 150W 12V Mono rates 2.9 among 150 W and up ones. The Newpowa 100W Bifacial 12V costs $67.73 less ($69.99 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 | Newpowa 100W Bifacial 12V | Newpowa 150W 12V Mono |
|---|---|---|
| Overall rating | 3.3/5 | 2.9/5 |
| Value 45% | 93 $0.70 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% | 7 no IP rating, 2-year warranty | 7 no IP rating, 2-year warranty |
| Efficiency 15% | 12 18.6% module efficiency (from size and rated power) | 40 20% module efficiency (from size and rated power) |
Specifications
| Newpowa 100W Bifacial 12V | Newpowa 150W 12V Mono | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 150 W |
| Module efficiency | 18.6% (rated power over panel area) | 20% (rated power over panel area) |
| Claimed efficiency | 21.1% (datasheet "maximum efficiency" (not labeled cell or module)) | 22.6% (datasheet "maximum efficiency" (not labeled cell or module)) |
| Cells | Monocrystalline (Bifacial, transparent backsheet, 30 cells) | Monocrystalline (10BB, 182 mm cells, 60 cells) |
| Bifacial | Yes | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 20.4 V | 20.4 V |
| Voltage at max power (Vmp) | 17.1 V | 17.4 V |
| Short-circuit current (Isc) | 6.2 A | 9.1 A |
| Current at max power (Imp) | 5.8 A | 8.6 A |
| Voc temperature coefficient | -0.4%/°C | -0.4%/°C |
| Connections | ||
| Output connector | Pre-attached 3 ft leads with male/female solar connectors | Pre-attached 3 ft leads with male/female solar connectors |
| Build | ||
| Weight | 13.7 lb (6.2 kg) | 18.5 lb (8.4 kg) |
| Dimensions | 36.6 x 22.8 x 1.2 in | 38.6 x 30.1 x 1.4 in |
| Frame | black anodized aluminum | anodized aluminum |
| Glass | low-iron tempered | low-iron tempered |
| Warranty | 2 years | 2 years |
| Output warranty | 90% output for 10 years, 80% for 25 years | 90% output for 10 years, 80% for 25 years |