400W Solar Panels

87 products

About 400W Solar Panels

400W solar panels are the sweet spot for residential rooftop installations, offering an excellent balance of power output, physical size, and cost per watt. At PES Global Group, we carry 400W monocrystalline panels from Silfab, Canadian Solar, and other trusted brands, all engineered for high efficiency and long-term durability.

A typical 400W panel measures approximately 79" x 39" and weighs around 50 lbs, making it easy to handle for one-person installation. With 25-year performance warranties and UL 1703 certification, these panels are built to deliver reliable energy production for decades. PES Global Group offers competitive pricing, fast shipping from our Louisville, KY operations, expert technical support from our product team, and bulk pallet ordering for contractors and EPCs.

For a typical 8kW residential system, you will need approximately 20 panels at 400W each. Use our Solar Panel Sizing Calculator to determine the right quantity for your energy needs.

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