Canadian Solar TOPHiKu6 455
#9 in 150 W and upFull review
A low-cost all-black panel from a top-tier maker for a home rooftop, especially in snowy areas. Confirm stock before planning around it.
Solar Cellz USA $241.45$241.45
The Canadian Solar TOPHiKu6 455 is the better rigid solar panel overall, rated 4.5 to 4.0. The Canadian Solar TOPHiKu6 455 leads on durability and value. The HISHEN FLOWE 495W Frameless wins on efficiency. The Canadian Solar TOPHiKu6 455 costs $98.54 less ($241.45 vs $339.99).
HISHEN FLOWE 495W Frameless
#25 in 150 W and upFull review
A frameless dual-glass large panel for home rooftop, shed or ground-mount buyers who want edges that shed dirt and snow. The missing electrical specs make it a harder buy than framed panels with full data sheets.
Amazon $339.99$339.99
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 Canadian Solar TOPHiKu6 455 for durability (IP68, 25-year warranty vs no IP rating, 10-year warranty) and value ($0.53 per rated watt vs $0.69 per rated watt).
- Choose the HISHEN FLOWE 495W Frameless for efficiency (24.4% module efficiency (from size and rated power) vs 22.3% module efficiency).
Scores side by side
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 | Canadian Solar TOPHiKu6 455 | HISHEN FLOWE 495W Frameless |
|---|---|---|
| Overall rating | 4.5/5 | 4.0/5 |
| Value 45% | 92 $0.53 per rated watt | 77 $0.69 per rated watt |
| Tested output 15% | 50 not yet independently tested (neutral score used) | 50 not yet independently tested (neutral score used) |
| Durability 25% | 100 IP68, 25-year warranty | 60 no IP rating, 10-year warranty |
| Efficiency 15% | 86 22.3% module efficiency | 100 24.4% module efficiency (from size and rated power) |
Specifications
| Canadian Solar TOPHiKu6 455 | HISHEN FLOWE 495W Frameless | |
|---|---|---|
| Output | ||
| Rated power | 455 W | 495 W |
| Module efficiency | 22.3% | 24.4% (rated power over panel area) |
| Claimed efficiency | 22.8% ("module efficiency up to 22.8%" (465 W version); the 455 W version is 22.3%) | 25.6% (cell efficiency, as published in the title) |
| Cells | Monocrystalline (N-type TOPCon, 108 half cells) | Monocrystalline (N-type, 16BB, Grade A+) |
| Bifacial | No | - |
| Electrical | ||
| Open-circuit voltage (Voc) | 39.1 V | - |
| Voltage at max power (Vmp) | 33.2 V | - |
| Short-circuit current (Isc) | 14.6 A | - |
| Current at max power (Imp) | 13.7 A | - |
| Voc temperature coefficient | -0.2%/°C | - |
| Series / parallel | Yes | - |
| Connections | ||
| Output connector | T6, MC4, MC4-EVO2 or MC4-EVO2A | - |
| Build | ||
| Weight | 50.7 lb (23 kg) | - |
| Dimensions | 70.9 x 44.6 x 1.38 in | 70 x 45 x 1.2 in |
| Frame | anodized aluminum alloy, black | frameless ("Cleanedge" design) |
| Glass | 3.2 mm tempered, anti-reflective coating | 2.0 mm dual-glass |
| Junction box rating | IP68 | - |
| Warranty | 25 years | 10 years |
| Output warranty | 30-year linear: no more than 1% loss in year 1, then no more than 0.4% a year | - |