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The Niwa Light series - maximum performance with minimum weight


The Jolywood Niwa Light series combines maximum efficiency with a particularly lightweight design, ideal for roof systems and installations with load restrictions. Thanks to J-TOPCon 2.0 technology, an output of up to 435 W and an efficiency of 22.27 %, these modules deliver stable yields - even in low light. Their weight, which has been reduced by over 20 %, also makes transportation and installation easier.
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The Niwa Light series - Lightweight high-performance modules with n-type TOPCon technology


The Niwa Light series offers an innovative combination of high performance and reduced weight, ideal for applications where a lighter design is crucial. With an output of up to 435 W and an efficiency of up to 22.27 %, the series ensures maximum energy yields with easy installation.

Thanks to J-TOPCon 2.0 technology and SMBB (Super Multi Busbar) technology, the modules offer higher reliability, better low-light performance and excellent temperature resistance. The n-type cells without LID (Light Induced Degradation) ensure long-term stable yields.

Why the Niwa Light series?

  • Lightweight design - Over 20 % lighter than bifacial double glass modules
  • High output - modules with 415 W to 435 W and up to 22.27 % efficiency
  • Better low-light performance - Higher yield even in cloudy skies or low solar irradiation
  • Low degradation - 1% in the first year, then only 0.4% per year, for long-term high yields
  • Optimum temperature resistance - Low temperature coefficient of -0.30 %/°C for higher performance at high temperatures
  • High mechanical load capacity - Tested up to 5400 Pa snow load and 2400 Pa wind load
  • No LID - n-type cells have no light-induced degradation, which increases energy production

Technical highlights

  • Power range: 415 W - 435 W
  • Efficiency: Up to 22.27 %
  • Temperature coefficient (Pmax): -0,30 %/°C
  • Nominal voltage: 1500 V (IEC)
  • Cell technology: n-type TOPCon, 108 half cells
  • Module size: 1722 × 1134 × 30 mm
  • Weight: 21.5 kg
  • Frame material: Anodized aluminium alloy
  • Protection class: IP68 (Junction Box)
  • Glass structure: 3.2 mm tempered glass

Models in the Niwa Light series

  • JW-HT108N-415 - 415 W, efficiency 21.25 %
  • JW-HT108N-420 - 420 W, efficiency 21.51 %
  • JW-HT108N-425 - 425 W, efficiency 21.76 %
  • JW-HT108N-430 - 430 W, efficiency 22.02 %
  • JW-HT108N-435 - 435 W, efficiency 22.27 %

All models are based on J-TOPCon 2.0 technology and offer easy installation and stable yields over many years thanks to their lightweight design.

Maximum efficiency with the Niwa Light series


The Niwa Light series impresses with its high output, reduced weight and state-of-the-art cell technology. Its n-type TOPCon technology and lightweight design make it the ideal choice for rooftop systems, commercial PV systems and installations with weight restrictions.

Also discover other solar modules from Jolywood such as the Niwa Black series and the Niwa Pro series.