420W Solar Panels

420W solar panels specifications may vary due to different brands. For a Longi 420W solar panel, the weight is 20.8kg, and dimension is 1722x1134x30mm, single glass is 3.2mm coated tempered glass, the junction box is IP68, three diodes, the conversion efficiency is 21.5%. For detailed specifications, please see each datasheet shown above, and if you need to know the data of solar panels of other powers, feel free to contact us directly.

A 420 W panel is rated to deliver 420 Wdc at stable test conditions. You will see 320W to 360W operating power in real field conditions. The actual yield of the solar panel depends on the installation site, climate, shading, and DC to AC ratio, etc.

It’s a rule of thumb that says you can oversize the PV array by about 33% above the inverter’s AC rating.

For example, a 10 kW solar inverter with 13.3 kWdc of solar panels —about 32 × 420 Watt solar modules. This isn’t a code requirement; and you must stay within your inverter’s max DC voltage/current and your local interconnection rules.

HBOWA 420W solar panels MOQ is one pallet, and the pieces depend on the panel’s brand, which can be 31 pcs, 35 pcs, 36 pcs, etc.