The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) and the Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel are evenly matched, rated 4.5 and 4.5. The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) leads on features and value. The Renogy Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel wins on durability and portability. The HQST 100W Ultra-Light Foldable Portable Solar Panel (HPP100N) costs $60.99 less ($89 vs $149.99).
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 $89.99For curved roofs with vents, racks or antennas that shade part of the panel during the day. With clear sun on an open roof, Renogy’s standard 100 W flexible panel costs less.
Amazon $149.99 Renogy $172.99Prices 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 Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel |
|---|---|---|
| Overall rating | 4.5/5 | 4.5/5 |
| Value 30% | 100 $0.89 per rated watt | 89 $1.50 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 23.9 W per lb (4.2 lb (1.9 kg)) |
| Durability 15% | 60 IP67, 1-year warranty | 100 IP68, 3-year warranty |
| Efficiency 10% | 100 25% claimed efficiency | 100 25% 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 Flex ShadowFlux 100W N-Type Anti-Shading Flexible Solar Panel | |
|---|---|---|
| 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) | 25% (cell efficiency ("up to 25%")) |
| Cells | Monocrystalline (N-type TOPCon, 16BB) | Monocrystalline (N-type TOPCon, cell-level bypass diodes (ShadowFlux)) |
| Bifacial | No | No |
| Electrical | ||
| Open-circuit voltage (Voc) | 20.7 V | 33.6 V |
| Voltage at max power (Vmp) | 18 V | 28.8 V |
| Short-circuit current (Isc) | 6.4 A | 3.7 A |
| Current at max power (Imp) | 5.6 A | 3.5 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) | 4.2 lb (1.9 kg) |
| Flexible | - | Yes, bends up to 270° |
| Dimensions | - | 37.09 x 24.13 x 0.10 in |
| 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 | IP68 |
| Warranty | 1 years | 3 years |
| Output warranty | - | 3-year power output warranty |
