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Vikram Solar PREXOS-385W
Vikram Solar Brand review

PREXOS-385W

385 Wp PERC Bifacial 1500%
ComparePV verdict

Solid all-round for its segment

Rank 12,530 of 14,129
Compare panels Datasheet PDF
Power (Wp)
385
Typical for its class
Efficiency (%)
19.70
Typical · median 19.90%
Density (Wp/m²)
197.2
Typical · median 199.0
Temp (%/°C)
-0.350
Typical · median -0.350
Weight (kg)
21.3
Typical · median 21.4 kg
Warranty (yrs)
27
Typical · median 25 yrs

The Vikram Solar PREXOS series consists of technologically advanced modules utilizing half-cut cell technology, which significantly reduces energy losses resulting from internal resistance and periodic shading. Thanks to the use of an innovative monocrystalline bifacial cell design, these panels generate electricity not only from direct sunlight but also from radiation reflected from the ground, making them an ideal solution for large ground-mounted farms and commercial installations. The use of multi-busbar connections minimizes the risk of micro-cracks and improves charge flow, which directly translates into higher efficiency in low sunlight conditions. The PREXOS series effectively solves the problem of limited installation space by offering impressive power density, which allows for significant optimization of system and cabling costs. What distinguishes these modules from the competition is their exceptional resistance to LID and LeTID degradation, as well as a reinforced frame prepared for extreme mechanical loads. By choosing the PREXOS series, investors receive a guarantee of stable energy yields over a very long time horizon, making it a solution dedicated to the most demanding photovoltaic projects focusing on reliability and a fast return on investment.

Ranking

579 panels in the segment PERC 350-400 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.70% 19.90% Typical 12,596
Power density 197.2 199.0 Typical 12,578
Temperature coefficient -0.350 -0.350 Typical 10,489
Weight per kWp 55.3 55.8 Typical 9,870
Performance warranty 27 yrs 25 yrs Typical 9,781
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 0 caution
Best for

Utility-scale, commercial and shaded-installations.

Notes from the database
  • Efficiency of 19.7% matches the PERC 0-400W median
  • Power density of 197.2 W/m² matches the PERC 0-400W median
  • Temperature coefficient of -0.35%/°C matches the PERC 0-400W median
  • Ranked #12596 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 385 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.70 % Typical Segment median 19.90%
Vmpp · Impp 31.00 V · 12.42 A Operating point at max power
Voc · Isc 37.20 V · 13.00 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×35 mm · 1.95 m² of roof
Weight 21.3 kg Typical Typical · median 21.4 kg
Cells 108 · PERC Monocrystalline
Bifaciality 1500 % Rear output as a share of front
Coefficient Pmax -0.350 %/°C Typical median -0.350 of its segment
Coefficient Voc · Isc -0.270 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 27 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 83.7 % Equals 316 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.350 %/°C against a segment median of -0.350
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Vikram Solar PREXOS-385W 385 W 19.70% -0.350 21.3 kg You are here
GKA210M340W 340 W 23.00% - 16.2 kg -45 W, lighter, +3.3 pp
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.3 pp, +3 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +3 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +3 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.3 pp, +3 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.3 pp, +3 yr warranty
LX-435M/182-108+ GG 435 W 22.81% -0.240 23.6 kg +50 W, cooler, +3.1 pp
JT435SYk(B) 435 W 22.70% -0.240 23.0 kg +50 W, cooler, +3.0 pp
SPR-MAX3-430-R 430 W 22.70% -0.270 21.2 kg Cooler, +3.0 pp, +13 yr warranty
LX-435M/182-108+ 435 W 22.61% -0.300 21.5 kg +50 W, cooler, +2.9 pp
SOMERA VSMHBB.54.380.05 380 W 19.45% -0.350 21.3 kg -0.2 pp
SOMERA VSMHBB.54.390.05 390 W 19.96% -0.350 21.3 kg +0.3 pp
PARADEA VSMDH.54.AAA.05-395 395 W 20.23% -0.350 25.1 kg Heavier, +0.5 pp, +3 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +125 W, cooler, +5.3 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +110 W, cooler, +5.1 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +120 W, cooler, +5.0 pp

Found 1797 panels of the same or similar size to this one, within ±10 mm. See them here Found 1928 panels of the same or similar size to this one, within ±25 mm. See them here Found 3413 panels of the same or similar size to this one, within ±50 mm. See them here Found 4007 panels of the same or similar size to this one, within ±100 mm. See them here

About the PREXOS series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

Is the Vikram Solar PREXOS series still available for purchase?
The manufacturer has discontinued the PREXOS series, replacing it in the current lineup with newer solutions such as the Paradea series. PREXOS modules may still be found through distributors selling remaining warehouse stock, but availability is limited and shrinking over time. Buyers should confirm stock of the specific power rating and the validity of the manufacturer warranty before purchasing.
What are the benefits of the half-cut cell technology used in PREXOS?
Splitting each cell in half reduces internal resistance and resistive losses, resulting in higher energy yield, especially under partial shading such as from a chimney or antenna. The smaller cell segments are also more resistant to microcracks, improving the panel's durability during handling, transport, and installation in demanding conditions.
What warranty does Vikram Solar offer on the PREXOS series?
The PREXOS series comes with a 12-year product warranty covering material and workmanship defects, plus a 27-year linear power warranty guaranteeing a defined percentage of initial output throughout that period. This is one of the longer warranty periods offered by tier-1 manufacturers, which matters when calculating return on investment for larger installations.
Do PREXOS bifacial panels make sense for ground-mounted installations?
Yes, the bifacial design with monocrystalline PERC cells captures additional energy from light reflected off the ground, which is especially beneficial for ground-mounted systems on light, reflective surfaces such as gravel or white membrane. This extra rear-side energy gain can meaningfully increase total output compared to monofacial modules in a solar farm.
What type of installation suits a 680 Wp PREXOS panel?
The 680 Wp output and high power density make the PREXOS series well suited to large commercial installations and solar farms, where fewer panels are needed to reach a target capacity, reducing costs for mounting structures, cabling, and installation labor. It's a design optimized for limited roof or ground space while maintaining high performance.
Is Vikram Solar a reliable manufacturer, and where is it based?
Vikram Solar is an Indian solar module manufacturer classified as a tier-1 supplier, indicating recognized financial stability and bankability for projects using its panels. The PREXOS series was also known for strong resistance to LID and LeTID degradation and a reinforced frame, making it a trusted choice for investors seeking stable energy yields over the long term.
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