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
3.3/5
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.
- 100 WRated output
- $0.70Price / W
- 20.4 VOpen-circuit voltage
- 13.7 lbWeight
- 2 yearsWarranty
Check price at Amazon$69.99
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Small enough at about 37 x 23 in to fit between vents on a van or trailer roof
- Clear back lets it pick up light reflected off a pale roof or the ground when tilted
- A 17 V operating voltage charges a 12 V battery with an inexpensive PWM controller
Cons
- Only a 2-year workmanship warranty, shorter than most rivals’ 5 to 10 years
- Newpowa doesn’t publish the junction box’s IP rating
- No independent output test yet
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Output | |
|---|---|
| Rated power | 100 W |
| Module efficiency | 18.6% (rated power over panel area) |
| Claimed efficiency | 21.1% (datasheet "maximum efficiency" (not labeled cell or module)) |
| Cells | Monocrystalline (Bifacial, transparent backsheet, 30 cells) |
| Bifacial | Yes |
| Electrical | |
| Open-circuit voltage (Voc) | 20.4 V |
| Voltage at max power (Vmp) | 17.1 V |
| Short-circuit current (Isc) | 6.2 A |
| Current at max power (Imp) | 5.8 A |
| Voc temperature coefficient | -0.4%/°C |
| Connections | |
| Output connector | Pre-attached 3 ft leads with male/female solar connectors |
| Build | |
| Weight | 13.7 lb (6.2 kg) |
| Dimensions | 36.6 x 22.8 x 1.2 in |
| Frame | black anodized aluminum |
| Glass | low-iron tempered |
| Warranty | 2 years |
| Output warranty | 90% output for 10 years, 80% for 25 years |
Alternatives in this size
ECO-WORTHY 100W Bifacial 12V
#7 in Under 150 WFull review
A budget bifacial panel for a tilt rack or ground mount over light ground on a 12 V system. ECO-WORTHY’s N-type 100 W panel is the better buy at the same price.
Amazon $76.99$76.99
ECO-WORTHY 100W N-Type 18V
#8 in Under 150 WFull review
A cheap single 100 W panel for a 12 V RV, boat or shed system. Buyers who want a full spec sheet and a stated warranty should pay a little more for Renogy or Callsun.
Amazon $76.99 ECO-WORTHY $76.99$76.99
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