TCL HSM-ND66-GK705 solar panel review and full specs: 705W power output, 22. 70% efficiency, Monocrystalline cells. The TCL G12-66P series introduces a new quality to photovoltaic installations, basing its design on breakthrough G12-sized silicon wafers. The use of such large cells in combination with shingled technology allows for maximum active surface density, which effectively eliminates energy losses. *Bifacial Gain: The additional gain from the back side compared to the power of the front side at the standard test condition. lt depends on the mounting (structure, height, tilt angle, etc. Ø 25 mm at 23 m/s 2400 Pa or 244 kg/m2 5400 Pa or 550 kg/m2 Class A. *The regular product warranty is 15 years, please refer to the latest version of AESOLAR Limited Warranty for the duration of the product warranty under special conditions. for extensions, please contact AESOLAR staff. Thanks to the use of a bifacial dual glass construction, these panels absorb light from both sides, which, combined with the double glass. The monocrystalline silicon 705W photovoltaic module represents the pinnacle of solar innovation, combining unprecedented power density with field-proven reliability. As the industry shifts toward 700W+ class modules, understanding these parameters becomes crucial for maximizing energy returns.