The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) is the better portable solar panel overall, rated 4.5 to 4.2. The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) leads on efficiency and features. The Renogy Black Division 100W Lightweight Flexible Solar Panel (RSP100DL-36) wins on durability and portability. The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) costs $15.49 less ($89 vs $104.49).
A good-value 100 W panel for owners of small power stations who want something light to set up beside the tent. The short warranty is the main trade-off.
Amazon $89 HQST $89.99A low-profile 100 W panel for curved or weight-limited van, RV and boat roofs, especially where an all-black look matters. On a flat roof that can take the weight, a rigid panel lasts longer for less money.
Amazon $104.49 Renogy $139.99Prices were last checked October 21, 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 small portable solar panel; a clear win is highlighted. How we rank explains each one.
| Factor weight | HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) | Renogy Black Division 100W Lightweight Flexible Solar Panel (RSP100DL-36) |
|---|---|---|
| Overall rating | 4.5/5 | 4.2/5 |
| Value 30% | 100 $0.89 per rated watt | 100 $1.04 per rated watt |
| Tested output 20% | 89 not yet tested; estimated 87% of rated watts from the median of the 10 tested panels | 91 not yet tested; estimated 87% of rated watts from 1 test of Renogy panels and the median of the 10 tested panels |
| Portability 15% | 91 16.9 W per lb (5.9 lb (2.7 kg)) | 100 18.9 W per lb (5.3 lb (2.4 kg)) |
| Durability 15% | 60 IP67, 1-year warranty | 100 IP67, 5-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 0 15.7% claimed efficiency |
| Features 10% | 55 built-in kickstand, series/parallel | 0 no kickstand, USB or bifacial cells |
| HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) | Renogy Black Division 100W Lightweight Flexible Solar Panel (RSP100DL-36) | |
|---|---|---|
| Output | ||
| Rated power | 100 W | 100 W |
| Tested output | Not tested (estimated 87%) | Not tested (estimated 87%) |
| Efficiency | 25% (conversion rate quoted by HQST as up to 25% cell efficiency) | 15.7% (module efficiency per Renogy's spec table; the Amazon listing quotes 22%) |
| Cells | Monocrystalline (N-type TOPCon, 16BB) | Monocrystalline (half-cut PERC) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 20.7 V | 23.5 V |
| Voltage at max power (Vmp) | 18 V | 19.4 V |
| Short-circuit current (Isc) | 6.4 A | 5.5 A |
| Current at max power (Imp) | 5.6 A | 5.2 A |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | MC4 | - |
| Cables included | 4.9 ft 3-in-1 adapter cable (XT60, DC7909, DC5521) | - |
| USB ports | None | None |
| Build | ||
| Weight | 5.9 lb (2.7 kg) | 5.3 lb (2.4 kg) |
| Flexible | - | Yes, bends up to 240° |
| Dimensions | - | 43.0 x 22.9 x 0.8 in (1093.0 x 582.0 x 20.5 mm) |
| Folded size | 23.94 x 20.47 x 1.38 in (608 x 520 x 35 mm) | - |
| Unfolded size | 36.85 x 23.94 x 0.12 in (936 x 608 x 3 mm) | - |
| Kickstand | Yes | No |
| Water resistance | IP67 | IP67 |
| Warranty | 1 years | 5 years |
| Output warranty | - | 5-year output warranty |
