Here you will find a list of the technical specification sheets for the VELUX product range. Click on the links below to download the PDF's. Centre-pivot Top-hung Manual GGL pine Manual GGU white Electric Solar GPL pine finish GPU white polyurethane Conservation roof window Smoke ventilation Centre-pivot and top-hung Smoke vent roof window system Flat roof smoke vent system (CSP) CABRIO balcony Roof terrace Roof balcony system (GDL) Roof terrace system (GEL) Sloping and vertical Sun tunnels Sloping and vertical pine VFE Sloping and vertical white VIU Flexible and rigid tunnels Flat roof sun tunnels (TCF/TCR) Flat roof kerb Flat roof window GGL with ECX kerb (n/a) CFP fixed without ventilation CVP electric Flat glass rooflight