Lovsun Foldable Solar Panel 400W
400 W
Lovsun Foldable Solar Panel 400W is an n-type TOPCon photovoltaic module rated at 400 W. TOPCon cells hold a lower temperature coefficient and lower first-year degradation than PERC, which matters most on hot rooftops and long-horizon commercial arrays.
What This Product Changes On Your Project
- n-type TOPCon cells hold a lower temperature coefficient than PERC, so more of the nameplate survives a hot roof
- Lower first-year and annual degradation extends the yield assumption that project finance is built on
- Higher watt density means the same roof area carries more kW, which decides marginal projects
- Half-cut cell layout reduces resistive loss and limits the output lost to partial shading
- PID-resistant construction for humid and high-voltage array conditions
Application Scenarios
- Hot-climate installations where temperature coefficient decides summer output
- Bifacial ground-mount on light-coloured or gravel ground for rear-side gain
- Carport and canopy structures with a fixed panel count
- Utility projects assessed on long-term degradation as much as on day-one power
- Commercial rooftops where available area caps the system size
Who It Is For
- EPC contractors bidding projects where yield per square metre decides the outcome
- Module distributors serving rooftop and ground-mount installers
- Developers whose financial model is sensitive to degradation assumptions
- Installers working hot-climate rooftops
Problems It Solves
- Mixed module batches causing current mismatch across an array
- Mounting systems that only fit one manufacturer's frame
- Roof area that is not enough for the target system size at standard module power
- Summer output falling well below nameplate on hot, unventilated roofs
Technical Features
- Bypass diodes in the junction box to limit the effect of partial shading
- Anodised aluminium frame drilled for standard clamp mounting
- PID-resistant encapsulation for humid, high-voltage arrays
- n-type TOPCon cell architecture with a passivated contact rear surface
- Half-cut cell layout to reduce resistive loss and shading impact
Published Specification Data
These figures come from the manufacturer datasheet for this model. Where a value you need is not listed, ask for the full datasheet rather than assuming a typical figure.
| Rated power | 400 W |
|---|---|
| Brand | Lovsun |
Quality Control
- Capacity and internal-resistance grading so cells within a pack are matched
- Full-function test on every finished unit, not a sample from the batch
- Insulation and dielectric withstand testing on completed assemblies
- Aged and burn-in run before packing, so early-life failures happen in the factory
- Serialised traceability from cell batch to finished unit
Customization Options
- Frame colour and cable length
- Pallet quantity and container loading plan
- Customer label on the module nameplate
- Bifacial or monofacial construction depending on the mounting surface
How It Compares With The Alternatives
| PERC modules | TOPCon holds a lower temperature coefficient and lower annual degradation, which shows up in summer output and in the year-25 yield assumption. |
|---|---|
| Thin-film modules | Crystalline silicon delivers more watts per square metre, which matters wherever roof area rather than budget caps the system size. |
| A lower power class of the same module | Fewer modules, fewer mounting points and less cabling for the same array size - the balance-of-system saving usually exceeds the module price difference. |
Getting This Product Right On Site
- 1
Check the string length against the inverter's MPPT window at the site's temperature extremes
- 2
Keep modules from one power class and batch on the same string to limit mismatch
- 3
Clamp only at the frame positions marked in the installation manual
- 4
For bifacial mounting, allow ground clearance and choose a reflective surface to earn the rear-side gain
- 5
Keep the flash-test records - they are the reference for any later performance claim
Lovsun Foldable Solar Panel 400W - Buyer Questions
How are modules packed for export
What is the degradation and performance warranty
Do bifacial modules need a special mounting system
Can we mix these modules with an existing array
What is the minimum order quantity for modules
Can you supply modules for a specific power class
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View Product →Background For This Specification Decision
Homes and villas adding solar self-consumption and backup, where the installer needs a kit that works the same way on every job.
See the application →Commercial and Industrial SitesFactories, warehouses, cold stores and commercial campuses where the electricity bill is driven as much by demand charges as by consumption.
See the application →Telecom and Remote Off Grid SitesBase stations, monitoring installations and remote facilities where every site visit is expensive and the power system has to run unattended.
See the application →Request A Quote For Lovsun Foldable Solar Panel 400W
Tell us the quantity, the destination market and the application. We reply within 12 hours with lead time, certification and pricing.