Solar panels in the 540-560W range (and up to 600W+), supplied by Pratyay Associates in Gorakhpur, Uttar Pradesh, across multiple leading brands including Tata, UTL, Havells, Adani, and Waaree. Panels in this wattage class are commonly used for both residential and commercial rooftop installations, offering a good balance of output per panel and ease of handling during installation. Contact the vendor for brand-specific pricing and availability.