ELEGOO 8K Standard Photopolymer Resin Space Grey 1KG 4" The scratch resistant tempered glass above and more weapons and The scratch resistant tempered glass above the LCD screen with 9H hardness has an excellent light transmission and screen protection 【Fresnel Collimating Light Source】 Fresnel collimating light source consists of 48 highly integrated UV LED lights that work with FCL system Fresnel lens to emit a uniform light beam of 405nm wavelength the resin can quickly infiltrate into the model and then solidify into the shape High Precision and Low Shrinkage: Extensive testing is carried out to verify the low volume shrinkage and high printing precision of standard 8K photopolymer resins before they are released to the public