Natural Light SAF65 Solar Attic Fan
#2 in Roof mountFull review
For a very large attic, up to 3,350 sq ft, where one strong fan with a lifetime warranty beats two smaller ones. The price is the highest in the category.
Amazon $882.70$882.70
The Natural Light SAF65 Solar Attic Fan rates 3.8 among roof mount solar attic fans; the OmniPV OP-SWF-40 Solar Gable Fan rates 3.3 among gable mount ones. The OmniPV OP-SWF-40 Solar Gable Fan costs $613.71 less ($268.99 vs $882.70).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
OmniPV OP-SWF-40 Solar Gable Fan
#4 in Gable mountFull review
A hybrid gable fan with a strong airflow claim at a mid range price, for a buyer who can live without a stated warranty.
Amazon $268.99$268.99
Scores side by side
These two sit in different mount classes (roof mount and gable mount), and each is scored against the reference points for its own class, so a rating says how well each does among its own mount peers. How we rank explains each factor.
| Factor weight | Natural Light SAF65 Solar Attic Fan | OmniPV OP-SWF-40 Solar Gable Fan |
|---|---|---|
| Overall rating | 3.8/5 | 3.3/5 |
| Value 25% | 20 $0.42 per CFM ($882.70, 2,105 CFM) | 78 $0.15 per CFM ($268.99, 1,800 CFM credited of 2,100 claimed (45 per panel watt)) |
| Airflow 15% | 79 2,105 CFM | 63 1,800 CFM credited of 2,100 claimed (45 per panel watt) |
| Panel 20% | 100 65 W panel | 60 40 W panel |
| Features 15% | 30 separate or tilting panel | 70 thermostat, AC backup |
| Warranty 25% | 100 lifetime warranty | 0 warranty not published, scored as none |
Specifications
| Natural Light SAF65 Solar Attic Fan | OmniPV OP-SWF-40 Solar Gable Fan | |
|---|---|---|
| Airflow | ||
| Mount | Roof | Gable |
| Airflow | 2,105 CFM | 2,100 CFM |
| Attic area | 3,350 sq ft | - |
| Motor | DC | brushless DC |
| Power | ||
| Panel | 65 W | 40 W |
| Separate or tilting panel | Yes | - |
| Thermostat | No | Yes |
| AC backup | No | Yes |
| Build | ||
| Weight | - | 12 lb |
| Warranty | Lifetime | - |