Name: Trina Vertex S+ 16020W (36 x 445W) Pallet
Brand: Trina Solar
Price: 5499.99 USD

A very cheap pallet of black-framed rooftop-size panels for a large ground-mount or off-grid array where a UL or CEC listing isn’t needed.

Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

About 34 cents a watt, one of the cheapest ways to buy 16 kW of panels from a top-tier maker
25-year product warranty and 30-year output warranty
Glass on both sides resists moisture and microcracks better than a plastic backsheet

Cons

Only sold as a full pallet of 36 panels, delivered by freight
The seller says its stock of this line is not on the California Energy Commission list, which many utilities and incentive programs require
No UL listing shown on the datasheet we found, which most US permit offices need; TS4 connectors may need adapters

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Specifications

Output
Model number	TSM-445NEG9R.28
Rated power	16,020 W
Module efficiency	22.3%
Claimed efficiency	22.3% (module efficiency of the 445 W version, from the datasheet (the 450 W top of the range is 22.5%))
Cells	Monocrystalline (N-type i-TOPCon, 144 half-cut cells)
Bifacial	No
Electrical
Open-circuit voltage (Voc)	52.6 V
Voltage at max power (Vmp)	44.3 V
Short-circuit current (Isc)	10.7 A
Current at max power (Imp)	10.1 A
Voc temperature coefficient	-0.2%/°C
Series / parallel	Yes
Connections
Output connector	TS4 (MC4 EVO2 by special order)
Build
Weight	46.3 lb (21 kg)
Dimensions	69.4 x 44.6 x 1.18 in (each panel)
Frame	30 mm black anodized aluminum alloy
Glass	1.6 mm heat-strengthened front (anti-reflective) and rear (dual glass)
Junction box rating	IP68
Warranty	25 years
Output warranty	30 years: no more than 1% loss in year 1, then no more than 0.4% a year

A low-cost all-black rooftop panel with an unusually long 30-year product warranty, for a home system bought as a full set of panels.

$189.20

A well-priced all-black bifacial rooftop panel from a top-tier maker for a home grid-tie system bought as a full set.

$189

A solid all-black bifacial rooftop panel from a big-name maker for a home system of 10 or more panels, at a mid-range price per watt.

$207.66