HQST 100W 12V Rigid
#3 in Under 150 WFull review
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$49.99
The HQST 100W 12V Rigid is the better rigid solar panel overall, rated 3.8 to 3.6. The HQST 100W 12V Rigid leads on value and durability. The ECO-WORTHY 100W Bifacial 12V wins on efficiency. The HQST 100W 12V Rigid costs $27 less ($49.99 vs $76.99).
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
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.
Which should you buy?
- Choose the HQST 100W 12V Rigid for value ($0.50 per rated watt vs $0.77 per rated watt) and durability (IP65, 5-year warranty vs IP68).
- Choose the ECO-WORTHY 100W Bifacial 12V for efficiency (19.1% module efficiency (from size and rated power) vs 17.7% module efficiency (from size and rated power)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under 150 W rigid solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | HQST 100W 12V Rigid | ECO-WORTHY 100W Bifacial 12V |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Value 45% | 100 $0.50 per rated watt | 88 $0.77 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 51 IP65, 5-year warranty | 40 IP68 |
| Efficiency 15% | 0 17.7% module efficiency (from size and rated power) | 22 19.1% module efficiency (from size and rated power) |
Specifications
| HQST 100W 12V Rigid | ECO-WORTHY 100W Bifacial 12V | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Module efficiency | 17.7% (rated power over panel area) | 19.1% (rated power over panel area) |
| Claimed efficiency | 23% (cell efficiency, "up to") | 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 (9BB) | Monocrystalline (PERC, 12BB, half-cut) |
| Bifacial | No | Yes |
| Electrical | ||
| Open-circuit voltage (Voc) | 24.3 V | 22.7 V |
| Voltage at max power (Vmp) | 20.4 V | 19.5 V |
| Short-circuit current (Isc) | 5.2 A | 5.5 A |
| Current at max power (Imp) | 4.9 A | 5.1 A |
| Voc temperature coefficient | -0.3%/°C | -0.4%/°C |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | MC4 | MC4 |
| Build | ||
| Weight | 14.3 lb (6.5 kg) | 14.6 lb (6.6 kg) |
| Dimensions | 31.8 x 27.5 x 1.18 in | 35.24 x 23.03 x 1.37 in |
| Frame | anti-corrosion aluminum alloy | aluminum alloy |
| Glass | low-iron tempered | tempered |
| Junction box rating | IP65 | IP68 |
| Warranty | 5 years | - |
| Output warranty | 95% output for 5 years, 90% for 10 years, 80% for 25 years | - |
| Released | 2026-08 | 2023-11 |