SunPower SPR-3300f and SPR-4000f Inverters provide proven reliability and superior performance. Robust and precision-designed metal housing provides UV-resistance and corrosion protection and is ideal for both indoor and outdoor applications. Both models come with a 10-year warranty.
This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. Click here to see an estimate of our delivery times with standard FedEx Ground shipping.
Returns & Replacements
Regularly stocked, non-special-ordered, and non-custom-built items can be returned for a refund within 30 days of receipt if unused and in original packaging. Returns of solar panels, inverters or other large ticket items will incur a re-stocking fee of up to 30%. Freight shipping is non-refundable.
For more, please read our full return policy.