Solar Panels
Solar Panels
BrandLONGi
LONGI 555W Mono Perc Solar Panel
₨ 27,750PKR · price may vary
- Model
- LONI-04
- Specifications
- 13
- Current at Max Power13.19 A
- FrameAnodized Aluminium Alloy
- Glass Thickness3.2 mm
- Maximum Power414.8 Wp
- Module Efficiency21.1(%)
- View all 13 specifications ↓
Specifications
| General Specification | |
|---|---|
| Current at Max Power | 13.19 A |
| Frame | Anodized Aluminium Alloy |
| Glass Thickness | 3.2 mm |
| Maximum Power | 414.8 Wp |
| Module Efficiency | 21.1(%) |
| Open Circuit Voltage | 49.50 (Voc/V) |
| Operating Temperature | -40~85 °C |
| Power Tolerance | + 3 % |
| Protection Class | IP 68 |
| Short Circuit Current | 14.04 A |
| Voltage at Max Power | 42.1 V |
| Weight | 27.5 kg |
| Dimensions | 2278x1134x35 mm |
How to read this datasheet
LONGI 555W Mono Perc Solar Panel is listed with 13 published specifications from LONGi, including current at max power of 13.19 A, frame of Anodized Aluminium Alloy, glass thickness of 3.2 mm and maximum power of 414.8 Wp. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.
For a solar panel, the figures that matter most are physical dimensions and weight, which decide what fits your roof and mounting, open-circuit voltage (Voc) and short-circuit current (Isc) for string design, rated power in watt-peak (Wp) measured at standard test conditions and module efficiency, typically 19–23% on current products. Panels are the generating half of the system and the part that determines how much energy is available at all. They are also the longest-lived component, routinely still producing over 80% of their original output after 25 years.
A solar panel (photovoltaic module) converts sunlight directly into DC electricity, with no moving parts and no fuel.
What to check before ordering
The checks below apply to any solar panel. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.
- Prefer a lower (closer to zero) temperature coefficient in hot climates. Panels lose output as they heat up, and on a 45 °C roof the difference between −0.34 %/°C and −0.29 %/°C is real energy over a year.
- Read both warranties. The product warranty (typically 12–15 years, up to 25 on premium modules) covers manufacturing defects; the separate performance warranty guarantees output — commonly 87–92% remaining at year 25.
- Check the physical dimensions against your usable roof area before ordering. Modern modules are large, and a layout that works on paper can fail against obstructions, walkways and setback rules.
- Consider N-type TOPCon or bifacial modules where space is tight or the mounting is elevated and reflective — bifacial gains of 5–15% are realistic over a light-coloured flat roof or the ground, and close to zero flush against a dark tile roof.
Where buyers lose money
- Buying the highest wattage available without checking the inverter's MPPT voltage window — a string that sits outside the window produces less, or nothing.
- Assuming rated power is what you will see. Real-world output at midday is typically 75–85% of the nameplate figure after temperature, soiling, wiring and inverter losses.
- Underestimating shade. A single shaded cell can suppress an entire string unless you use module-level optimisers or microinverters.
Price and availability in Pakistan
LONGI 555W Mono Perc Solar Panel is listed at ₨ 27,750 (PKR) for Pakistan. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.
SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in Pakistan: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports LONGi locally before ordering.
LONGI 555W Mono Perc Solar Panel — frequently asked questions
How much does LONGI 555W Mono Perc Solar Panel cost?
LONGI 555W Mono Perc Solar Panel is listed at ₨ 27,750 (PKR) for Pakistan. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.
What are the specifications of LONGI 555W Mono Perc Solar Panel?
We hold 13 published specifications for this solar panel, including current at max power 13.19 A, frame Anodized Aluminium Alloy, glass thickness 3.2 mm, maximum power 414.8 Wp and module efficiency 21.1(%). The full table is on this page, listed under model LONI-04.
Who makes LONGI 555W Mono Perc Solar Panel?
LONGI 555W Mono Perc Solar Panel is a LONGi product, listed under solar panels with model reference LONI-04. The LONGi brand page lists the rest of its range so you can compare across the catalogue.
Is LONGI 555W Mono Perc Solar Panel right for my system?
That depends on what it has to connect to. For a solar panel, check cell technology — mono PERC, N-type TOPCon, HJT, or bifacial, temperature coefficient of power, usually −0.26 to −0.35 %/°C and first-year and annual degradation, and the performance warranty that guarantees them against the rest of your equipment before price enters the decision. Read both warranties. The product warranty (typically 12–15 years, up to 25 on premium modules) covers manufacturing defects; the separate performance warranty guarantees output — commonly 87–92% remaining at year 25.
Where can I buy LONGI 555W Mono Perc Solar Panel in Pakistan?
SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in Pakistan — buying in-channel is what keeps the manufacturer's warranty valid.
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