The Go Power Overlander 200W Kit and the Go Power Overlander-E 200W are evenly matched, rated 2.5 and 2.5. The Go Power Overlander-E 200W costs $148 less ($319.99 vs $467.99).
For an RV owner adding a first panel, who wants the controller, cables and mounts from one maker. Buyers who already own a controller pay far less per watt for a panel alone.
Amazon $467.99For expanding a Go Power Overlander system where matching hardware matters. For a new system, other 200 W panels cost far less.
Amazon $319.99Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every 150 W and up rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | Go Power Overlander 200W Kit | Go Power Overlander-E 200W |
|---|---|---|
| Overall rating | 2.5/5 | 2.5/5 |
| Value 45% | 0 $2.34 per rated watt | 0 $1.60 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 40 IP67 | 40 IP67 |
| Efficiency 15% | 70 21.5% module efficiency | 70 21.5% module efficiency |
| Go Power Overlander 200W Kit | Go Power Overlander-E 200W | |
|---|---|---|
| Output | ||
| Rated power | 200 W | 200 W |
| Module efficiency | 21.5% | 21.5% |
| Claimed efficiency | 21.5% (module efficiency) | 21.5% (module efficiency) |
| Cells | Monocrystalline | Monocrystalline |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 24.3 V | 24.3 V |
| Voltage at max power (Vmp) | 20.8 V | 20.8 V |
| Short-circuit current (Isc) | 10.1 A | 10.1 A |
| Current at max power (Imp) | 9.6 A | 9.6 A |
| Voc temperature coefficient | -0.3%/°C | -0.3%/°C |
| Series / parallel | Yes | Yes |
| Connections | ||
| Output connector | MC4 | MC4 |
| Cables included | 30A Bluetooth PWM controller (GP-SB-PWM-30-BT), 25 ft #10 solar output cables (red and black), Solar branch connectors, Mounting hardware | MC4 branch connectors, Mounting hardware |
| Build | ||
| Weight | 26.4 lb (12 kg) | 26.4 lb (12 kg) |
| Dimensions | 59.1 x 26.3 x 1.6 in | 59.1 x 26.3 x 1.6 in |
| Frame | anodized aluminum (clear or black) | anodized aluminum (clear or black) |
| Glass | tempered low-iron | tempered low-iron |
| Junction box rating | IP67 | IP67 |
| Output warranty | 25-year power output warranty | 25-year power output warranty |
| Released | 2023-03 | 2023-03 |
