Size: 520*520mm Focal length: 620mm Material: PMMA Groove pitch: 0.5mm Material : acrylic (pmma) Transmission (%): 92 (from 400-1100nm) Index of Refraction nd : 1.491 Operating Temperature (°C): 80 (Maximum) The range of application: 1) focusing action 2) Widely used in solar hot water heating 3) Also be suitable for Solar energy collector system, start a fire under sunlight, hot water heater, solar furnace, LCD projector Feature and advantages: 1) High light transmittance 2) Hihh efficiency in focusing 2) We can provide customer fresnel lens,because we can make mould by ourselves 3) 10 years' professional induction and design 4) High quality and competitive price 5) Good after-sales service Typical application: solar energy concentration, projector, LED lamp lens. lighting, magnifier etc.

• 129USD for 1PCS

129USD for 1PCSSix Seasons Technology Co.,Ltd.