Sources & Editorial Standards

For product-specific claims, we prioritize the current merchant sales page and the product material itself. For technical energy content, publication should rely on established engineering principles and authoritative references. Seller savings, ease-of-build and performance statements are labeled as seller claims unless independently verified.

Power Efficiency Guide source notes

The current merchant page states a 60-day refund period and makes substantial savings/ease claims. Its disclaimer also says the project was not technically assessed. The guide itself describes advanced mechanical/electrical knowledge as necessary and warns that building is at the user’s own risk.