A dependable 100 W panel for a fixed install on a van, boat, shed or small off-grid setup. The smaller footprint and 10-year warranty are worth a few dollars over generic 100 W panels.
Amazon $89.99 Renogy $109.99
A cheap 100 W panel for a small 12 V system on a van, boat or shed. JJN’s newer N-type 100 W panel is the more efficient choice if the price gap is small.
- 100 WRated output
- $0.59Price / W
- 20.8 VOpen-circuit voltage
- 13.4 lbWeight
- 5 yearsWarranty
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
- Under 60 cents per watt, one of the cheapest ways to add a 100 W panel
- A true 12 V panel: works with a basic PWM controller on a 12 V battery
- Small and light enough at 38 x 23 in and 13 lb for one person to mount
- Older 23% cells; Amazon points buyers to JJN’s newer N-type 100 W panel
- Only 5 years of workmanship warranty
- 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 |
| Efficiency | 23% (the maker does not say whether this is cell or module efficiency) |
| Cells | Monocrystalline (10BB, half-cut cells) |
| Bifacial | No |
| Electrical | |
| Open-circuit voltage (Voc) | 20.8 V |
| Voltage at max power (Vmp) | 17.5 V |
| Short-circuit current (Isc) | 6.4 A |
| Current at max power (Imp) | 5.7 A |
| Connections | |
| Output connector | MC4 |
| Build | |
| Weight | 13.4 lb (6.1 kg) |
| Dimensions | 38.2 x 22.7 x 1.2 in |
| Frame | black aluminum |
| Glass | tempered |
| Junction box rating | IP65 |
| Warranty | 5 years |
| Output warranty | 30-year performance warranty, 80-83% output |
Alternatives in this size
The budget pick for a shed, gate opener, small cabin or ground mount where space isn’t tight. On a crowded van roof a smaller N-type 100 W panel is the better fit.
Amazon $49.99 HQST $49.99For 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 $128.24 Renogy $129.99Compare
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