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    LW Crystal 400 for pitched roof with corrugated sheet, basic kit

    Original crystal sun tunnel with maximal light power during the whole day

    Our price with VAT:
    559.46 £ VAT 20%
    Our price without VAT:
    466.22 £
    Common price with VAT:
    615.77 £
    You save:
    56.31 £
    In Stock
    10 let

    Product description

    The unique sun tunnel with Lightway Crystal dome


    The basic kit of the sun tunnel includes all components for construction of the sun tunnel.

    The basic kit includes:

    1. Crystal dome with roof flashing and accessory for complete assembly of the roof part of sun tunnel

    2. 1 piece of 625 mm long reflective tube for bringing the light from the dome to the interior

    3. Glass diffuser (for light spreading) with a white trim for the assembly into the ceiling

    4. Assembly accessory


    In case you need to have bent or extended light tube (the direction change of conduction of the tube), it is necessary to buy required amount of extension tubes and adjustable elbows!


    If you need help with sun tunnel assembly, please contact our customer service.


    Glass dome made of Bohemian Crystal

    The sun tunnels Lightway Crystal are unique, thanks to the crystal dome. It is made of Bohemian crystal and it collects 30% more natural daylight that polycarbonate equivalents. It is resistant against aging even in intense U.V. light and weather conditions. The crystal and the design of the dome have an ability to collect daylight even when it is cloudy and it does not distort natural colours of daylight.

     The surface of the crystal is polished and hard, so smog or impurities do not stick to it, that’s why it needs almost no maintenance. The crystal dome does not turn yellow after a few years and imits the same light for decades.

     Optical attributes of the dome are well designated, so it keeps hi performance light collection even if it is cloudy. That’s why it provides great light through the sun tunnel the whole day.


    High reflective light tube and adjustable elbow

    Inside of the Lightway tube there flows sunlight into the interior. The inside walls of the tube are created by extremely powerful mirrors with maximum light reflectivity.

     The inside reflective layer is made of silver and silicon oxide, which are fixed by chemical vapor deposition in a vacuum. The layer will not or peel it or be warped by changes of temperature and humidity.

     Connecting the light tube to the adjustable elbow, Blue Performance insulation and a dimmer is easy due to systematic connections, which is a standard part of package.

     Technical information:

    • reflection of reflexive layer of the pipe 99,8%

    • ray diffusion during reflection in 45 angle in pipe <6%

    • the basic material is aluminum, 99,7%

    • overall maximum distance of sun pipe is up to 80 meters, including 2 adjustable elbows 90° direction change of the conduit. The conduit of the tube can be vertical or horizontal without any effect on performance.

     The loss of light affected by tube lenght can be as little as:

    • within 10 meters 0,5%

    • more than 10 meters 0,7%


    Glass ceiling diffuser – light diffuser

    The glass diffuser spreads light through the room and it prevents direct

    glare of light in interior. It is made of glass, that’s why it doesn't turn yellow and it lets the sunlight through well without any loss on light intensity and any change on the color spectrum. The diffuser is already assembled with the tube of the length 200mm. It is easy to connect the light tube to isolation element Blue Performance and a dimmer.

    • it is made of sodium-potassium glass

    • does not turn yellow, does not change color spectrum

    • white color trim


    Additional LED light

     It is used for illumination in the time of year when it is dark outside. Your sun tunnel Lightway will do the function of the sun tunnel as well as the ceiling light.

     LED strap will be easily stuck in two threads on the inside of pipe above the ceiling diffuser.

     Standard chromaticity of the light is warm white.

     The power of LED light for individual types/sizes of sun tunnels

    Size/typeof sun tunnel

    Lenght of LED strap

    Outputof the source

    LW 200

    70 cm

    40 W

    LW 300

    140 cm

    40 W

    LW 400

    210 cm

    40 W

    LW 600

    330 cm

    60 W

    LW 800

    480 cm

    60 W



    It is possible to buy assembly kits with steam-tight and diffuse foil.

     How much light can the sun tunnel bring?

    Product Parameters

    Sun pipe diameter
    400 mm

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