1. Polycarbonate lighting cover (PC lighting cover) (Endurance board lighting cover) (Aviation endurance board lighting cover):

　1. Structural features:

　　　①The lighting cover frame is an aluminum alloy structure and will never rust;
　　　②The lighting cover frame is fixed by side connection and is not easy to seep;
　　　③The lighting PC board is made of high-quality imported materials, which is durable, flame-retardant, highly transparent, and has long aging resistance. and other advantages;
　　　④Light weight, the overall weight is less than 30kg/m2 (including structure);
　　　⑤The light-transmitting material has strong plasticity and flexible design forms.

　2. Physical properties:

　　　①Light transmittance ≥88% (single layer) belongs to level 5 "GB/T 11976-2002"
　　　②Air permeability: belongs to level 8 "GB-7106-2008"
　　　③Rainwater leakage: belongs to level 5 "GB-7106" -2008》
　　　④Heat transfer coefficient: K0 =2.71W/m2·k (double layer) belongs to 5 Grade "GB-8484-2008"
　　　⑤ Wind pressure resistance: both positive and negative pressures are higher than Grade 6 "GB-7106-2008"
　　　⑥ Drop weight impact performance: 3000g/m2 1.5m vertical drop without breakdown or fragmentation .

 2. Organic glass lighting cover (PMMA acrylic board):

　1. Structural features:

　　　① The lighting cover frame is an aluminum alloy structure and will never rust;
　　　② The lighting cover frame is fixed by side connection and is not easy to seep;
　　　③ The lighting PMMA board is made of high-quality imported materials and has the advantages of high transparency and long aging resistance. ;
　　　④Light in weight, the overall dead weight is less than 30kg/m2 (including structure);
　　　⑤The light-transmitting material has strong plasticity and flexible design forms.

　2. Physical properties:

　　　①Light transmittance ≥82% (single layer) belongs to level 5 "GB/T 11976-2002"
　　　②Air permeability: belongs to level 8 "GB-7106-2008"
　　　③Rainwater leakage: belongs to level 5 "GB-7106" -2008》
　　　④Heat transfer coefficient: K0 =2.72W/m2·k (double layer) belongs to level 5 "GB-8484-2008"
　　　⑤Wind pressure resistance: both positive and negative pressures are level 6 "GB-7106-2008"
　　　⑥ Drop weight impact performance: 500g/m2, no penetration or fragmentation when dropped vertically from a height of 1.2m.

　3. Applicable occasions: suitable for hotels, restaurants, workshops and other occasions.

 3. FRP lighting cover (FRP)

　1. Structural features:

　　　① The lighting cover has no pressure frame, and the overall flanging method can achieve zero leakage whether it is fixed on the upper connection or the side connection;
　　　② The material of the lighting cover is made of high-quality weather-resistant unsaturated polyester light-transmitting resin and glass fiber short Made of a mixture of cut felt and reinforced glass fiber;
　　　③ The corrosion resistance of lighting materials is incomparable to other light-transmitting materials, and the light transmitted through is soft and non-glaring;
　　　④ Light weight, the overall weight is less than 35kg/m2 (including structure);
　　　⑤The light-transmitting material has strong plasticity, is easy to form, and is very flexible in design.

　2. Physical properties:

　　　①Light transmittance ≥60% (single layer) belongs to level 5 "GB/T 11976-2002"
　　　②Transparency ≤10%, the light is soft and non-glaring
　　　③Air permeability: belongs to level 8 "GB-7106-2008"
　　　④Rainwater penetration Leakage: Class 6 "GB-7106-2008"
　　　⑤Heat transfer coefficient: K0=1.6W/m2·k (double layer) belongs to level 7 "GB-8484-2008"
　　　⑥Wind pressure resistance: both positive and negative pressures are higher than level 6 "GB-7106-2008"
　　　⑦Fall Hammer impact performance: 1000g/1.2m, no breakdown or fragmentation.

  This series of lighting covers can be divided into three major forms in terms of structure:

   1. Spherical body: Dome-shaped spherical, dome-shaped lighting cover. The spherical structure has multi-directional elasticity and good impact resistance.

   2. Pointed cone: Pointed pyramid-shaped lighting cover, with edges and corners and clear edges, suitable for various occasions such as door awnings and so on.

   3. Polyhedron: special-shaped structure, according to customer requirements, beautiful and elegant shape.

  Comparison of three material lighting covers:

    1. PC polycarbonate lighting cover: also known as aviation endurance board lighting cover, a symbol of high-end, super weather resistance and endurance performance, commonly known as "the perfect lighting cover".

    2. PMMA organic glass lighting cover: It is suitable for the general public. It is not much different from PC lighting cover in terms of light transmittance, thermal insulation, sound insulation, etc., and its impact resistance is slightly lower than PC lighting cover.

    3. FRP fiberglass lighting cover: Economical and applicable, low cost, soft light, corrosion resistance and thermal insulation performance are better than the previous two lighting covers, easy to form, and can be formed into various complex polyhedrons. Simple comparison and small suggestions for your reference, choose according to your actual situation! !

PETG lighting cover is an emerging product formed from PETG sheets (also known as copolyester sheets). Good punch-out resistance and corrosion resistance have been widely recognized by society. PETG lighting cover is a product between organic glass lighting cover and polycarbonate PC lighting cover. The impact strength is 15-20 times that of ordinary acrylic sheets. In the falling ball impact test, the 3mm sheet can rebound a 5.4Kg sphere. The 1Kg sphere has no cracks after being dropped for 10 meters. The co-extruded protective layer of PETG sheet greatly enhances the stability of the product for long-term outdoor use. The board has good flame retardant properties and has passed the China Fireproof Materials Inspection to reach flame retardant B1 level.

The natural ventilation skylight is a new product that is integrated and improved on the basis of the original building daylighting skylight. Its main function is: a building daylighting skylight that integrates lighting, ventilation, smoke exhaust, and ventilation. The lighting hood at the top allows for daylight, and the louver base at the bottom allows for ventilation and heat dissipation. This type of window is a more suitable type of skylight today and is suitable for lighting and ventilation places where smoke exhaust requirements are not too high.