Shop 420W Solar Panels – High Efficiency 420-Watt Solar Modules ▾

420W solar panels deliver 420 watts of clean solar power per module, making them an excellent choice for standard residential rooftop systems, shed and garage solar installations, and light commercial applications. At US Solar Supplier, we carry 420W solar panels from top Tier 1 manufacturers including Q Cells, Canadian Solar, Trina Solar, JINKO, Aptos, and more, available in monocrystalline, bifacial, TOPCon, and Mono PERC technologies at competitive wholesale pricing for single panels and full pallet orders.

Our 420W solar panels are CEC-listed, UL-certified, and backed by strong product and linear power warranties from their respective manufacturers. This wattage range strikes an ideal balance between module size and power output, making them compatible with the widest range of inverter platforms and racking systems. Shop 420W solar panels at US Solar Supplier for wholesale pricing, flexible order quantities, and fast nationwide freight delivery directly to your project site.