Research, not a testing lab
We compare published specifications and explain calculations. We have not hands-on tested the products on this site. Any external test findings are attributed to their publisher; they are not our measurements. Manufacturer ratings describe an exact model and region, not every similarly named product.
How we calculate
The full formulas, default assumptions, size classes and sources are on How we calculate. How we handle data is in the privacy policy.
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Corrections and contact
Send source corrections or broken-link reports to hello@mysunspark.com. Include the page, exact claim and a supporting source where possible. Estimates are not electrical, medical or financial advice.