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Alexus Solar 400W Solar Panel

The Alexus Solar 400W Solar Panel (model ALEX-400-B-54-S) is a monocrystalline PERC half-cell, all-black module with a power output of 400W. It features a module efficiency of up to 20.5%, a maximum system voltage of 1500V, and is designed for durability with corrosion and ammonia resistance, wind load of 2400Pa, and snow load of 5400Pa. It is certified for safety and performance standards including IEC61215 and UL61730, with a 25-year material warranty and 80% power warranty (sources: manufacturer, renewableoutdoors.com, solarhub.com, alexussolar.com).

Images

Alexus Solar 400W Solar Panel
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Alexus Solar 400W Solar Panel
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Alexus Solar 400W Solar Panel
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Alexus Solar 400W Solar Panel
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Alexus Solar 400W Solar Panel
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Pros and cons

Pros

Strengths called out by generated product content.

  • Achieves an efficiency of 20.5% due to smaller solar cells reducing power loss
  • Good performance and stable output even on cloudy days
  • High performance, durable, and reliable according to user reviews
  • Higher output power with module efficiency up to 21.0%
  • Lower temperature coefficient and lower LCOE (Levelized Cost of Energy)

Cons

Tradeoffs and constraints to review before choosing.

  • Approximately 300 watts out of each 400 watt panel, indicating some power loss
  • Power loss of about 5% mentioned in discussions
  • Wiring and interconnection methods may be suboptimal or confusing
  • Some users express concern about the wiring setup and interlock design

Notes

Context that does not fit neatly as a pro or con.

  • Made by a major manufacturer, possibly similar to SolarEver
  • Made solar cells in smaller sizes to improve low-light behavior
  • Panels are all-black monocrystalline with a sleek appearance
  • Panel weight around 46.3 lbs

Electrical Specifications

Power Output
400 W1
Efficiency
20.5 %1
Cell Type
monocrystalline1
Max System Voltage
1,500 V1

Physical Dimensions

Width
1,134 mm1
Height
1,726 mm1
Weight
21 kg1

Material & Construction

Frame Material
black1
Frame Color
black1

Sources