Verification & sources
What We Verified
Reference model: TSM-450NEG9R.28
Official Trina Solar datasheet verified for Vertex S+ TSM-450NEG9R.28 (2023 revision; the current revision may differ slightly). Trina sells other 450W-class modules, so the seller's exact model must still be matched before purchase.
Primary technical sources
Manufacturer specifications are used as the technical reference. Marketplace price, stock, seller warranty, exact SKU and regional compatibility can change and should be confirmed before purchase.
Product overview
What to Know About Trina Solar 450W Monocrystalline
Trina Solar is one of the more recognizable panel brands in the local market, and this 450W monocrystalline version is aimed at buyers who want a trusted name without paying for the highest wattage tier. It works well when roof space is limited but you still want a manageable panel count.
Since sellers list this under a general product family rather than one locked SKU, treat the wattage as a starting point and ask for the specific model's datasheet before you commit to a string design or mounting layout.
Technical checklist
Key Specifications & Compatibility
Reference model: Trina Vertex S+ TSM-450NEG9R.28
Technology: N-type i-TOPCon monocrystalline, 144 half-cells, dual glass
Rated power: 450W (STC)
Vmp: 44.6V, Imp: 10.09A
Voc: 52.9V, Isc: 10.74A
STC efficiency: 22.5%
Dimensions: 1762 x 1134 x 30mm, weight about 21.0kg
Datasheet warranty: 25-year product, 30-year linear power
Best-fit guidance
Who This May Suit Smaller residential systems where roof space isn't the limiting factor.
Good to Know Before Buying Verify the current model variation and warranty terms with the seller before ordering.
Buyer checklist
Questions to Ask Before Buying What's the exact model number and datasheet for this batch? Is this new stock or older inventory being cleared out? What's covered under warranty, and for how long?
Buying Notes
Prices, stock, warranty, shipping, and exact technical specifications may change on the marketplace listing. Confirm the seller, model number, compatibility, and current terms before purchasing.
Frequently Asked Questions About Solar Panels
Monofacial panels only capture light on the front face, while bifacial panels can also capture reflected light on the back, often producing more energy on reflective surfaces like white roofing or gravel, at a higher price per panel.
Not necessarily. Compare price per watt, not just the headline wattage: a higher-wattage panel from a lesser-known brand can cost more per watt than a proven mid-wattage panel with a stronger warranty.
Well-installed quality panels commonly keep producing for 25 years or more, and most quality monocrystalline panels carry 25-year output warranties. Actual degradation depends on installation quality, heat exposure, and maintenance. Product (materials) warranties are often shorter than output warranties, so confirm both before buying.
Learn More Before You Buy
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Pros Recognizable brand with a long track record in the Philippine solar market. 450W is an easy size to work with for smaller 2kW to 5kW systems. Monocrystalline cells give slightly better low-light performance than polycrystalline options. Cons and Considerations Exact electrical specs and dimensions vary by batch, so get the datasheet first. Lower wattage than newer panels means you may need more panels for a large target system.
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