Robust IP44 luminaires with direct light emission, integrated DALI driver, up to 137 lm/W. Product features: Surface mounted luminaires with direct light emission. Type of protection: IP44. Impact resistance: IK08. Available in 3 different lengths: 600 mm, 1200 mm and 1500 mm. High luminous efficacy: up to 137 lm/W. Through-wiring cable already installed. Lifetime (L80/B10): 70,000 h (at 25 °C). White painted steel housing (like RAL: 9003). Diffuser material: UV-stable polycarbonate. End caps (made of polycarbonate) screwed to the housing. Product benefits: Low maintenance and low operational costs. Protection against cover falling, theft and vandalism thanks to safety screws. Cable entry on the back of the luminaire and on each end-caps for easy electrical connection. Easy and quick installation. Low flicker light thanks to special electronic control gear. 5 years guarantee. Areas of application: Efficient replacement for traditional T8 and T5 luminaires. Public buildings. General illumination. Libraries, schools. Equipment / Accessories: Equipped with through-wiring cables and connectors. Tool-free cable strain reliefs included.