Rich Solar MEGA 100 Slim
#5 in Under 150 WFull review
The panel to buy when a van or RV roof only has a long, narrow gap to fill. Where a standard 100 W panel fits, it costs much less.
Amazon $119.99$119.99
3.6/5
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.
- 100 WRated output
- $0.77Price / W
- 22.7 VOpen-circuit voltage
- 14.6 lbWeight
Check price at Amazon$76.99
Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- About 77 cents per watt for a bifacial panel
- 18 V-class panel charges a 12 V battery through a basic PWM controller
- Clear back gains output when mounted on a tilt rack or tracker over light ground
Cons
- Older PERC cells: ECO-WORTHY’s own N-type 100 W panel costs the same and is lighter
- The maker’s manual and product page give different voltage and current figures
- No warranty length published, and 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 | 19.1% (rated power over panel area) |
| Claimed efficiency | 23% (the Amazon listing's "conversion rate", not said to be cell or module; the manual gives module efficiency "up to 20.17%" across its 100-195 W bifacial range) |
| Cells | Monocrystalline (PERC, 12BB, half-cut) |
| Bifacial | Yes |
| Electrical | |
| Open-circuit voltage (Voc) | 22.7 V |
| Voltage at max power (Vmp) | 19.5 V |
| Short-circuit current (Isc) | 5.5 A |
| Current at max power (Imp) | 5.1 A |
| Voc temperature coefficient | -0.4%/°C |
| Connections | |
| Output connector | MC4 |
| Build | |
| Weight | 14.6 lb (6.6 kg) |
| Dimensions | 35.24 x 23.03 x 1.37 in |
| Frame | aluminum alloy |
| Glass | tempered |
| Junction box rating | IP68 |
| Released | 2023-11 |
Alternatives in this size
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
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
Compare
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