550 vs 580 vs 585 Watt Solar Panels: Which Size Should You Buy?
Three panel sizes dominate Pakistani searches: 550W, 580W and 585W. This comparison shows how many panels you need for each, which has N-type cells and how to compare their prices fairly.
Updated 12 November 2026
The three sizes
- 550W: Jinko Tiger Pro 550W (JinkoSolar Tiger Pro 550W Solar Panel), P-type mono, 25-year power warranty, the value choice.
- 580W: Jinko Tiger Neo 580W bifacial (JinkoSolar Tiger Neo N-Type 580W Bifacial Solar Panel (72HL4-BDV)), N-type TOPCon, 30-year power warranty.
- 585W: Jinko Tiger Neo 585W (JinkoSolar Tiger Neo N-Type 585W Solar Panel) and 585W panels from Longi, Canadian Solar, JA Solar and Astronergy (585W Solar Panels).
Panels needed
For a 5kW array: 10 panels of 550W, 9 of 580W or 585W. For 10kW: 19 of 550W, 18 of 580W, 17 of 585W. Fewer panels means fewer brackets and less cable, but only if the roof has the space and the inverter allows it.
Compare by price per watt
Divide each price by the watts. A 550W panel can cost less per watt, but N-type 580W and 585W panels lose less power over the years. See the 550W page (550W Solar Panels) and the 580W page (580W Solar Panels).
