Specifications a) High heat resistance b) Power -200W,575W,1200W,2500W,4000W,6000W,12000W c) Thickness: 3.3mm 5mm(custom size available ) l Introduction: We provide colorful lighting industry.Lighting system for complex demands can bear high temperature, such as bad, still can guarantee the stability of lighting system.We supply short BOROFLOAT® 33 are widely used in the LED chip, lighting equipment system filter, insulation slices, LOGO, high-power lighting protection and auto lamp protection glass. l Product features: a)High heat resistance b)The whole band range has excellent transmission performance c)Good resistance to strong alkali d)Excellent surface shape accuracy l Glass technical parameters: a)Material: BOROFLOAT® 33,TEMPAX® b)Thickness:1.0mm,1.5mm ,2mm ,3mm 4mm 6mm 8mm 10mm -20mm (Tolerances+ / - 0.02 mm) c)standard size:Φ4",Φ5",Φ6",85´85mm,105mm´105mm,150´150mm (other size can be customized) d)MIL:60/40 e)Roughness (Ra) Less-1.5nm f)TTV Less 0.01mm g)Chamfer C0.05~0.2mm l Product main technical parameters: Technical parameters: Density (25 ℃) 2.2g/cm2 Expansion coefficient(ISO 7991) 3.25´10-6k-1 Transmittance 91% Softening point 820℃ Short time use less 10h 550℃ Long time use more 10h 450℃ Refractive index (587.6nm) 1.47140 Knoop hardness 480