X-tend surface and suspended-mounted luminaires The Philips X-tend family of surface and suspended-mounted luminaires has the perfect combination of cutting-edge technology, functional brilliance and aesthetic appeal. The secret behind X-tend’s superb lighting qualities lies in its optic - based on specially designed 3-dimensional curves that offer highly efficient light distribution. X-tend meets most ceiling void restrictions, allowing architects and engineers ultimate design flexibility.TPS498 These range of high-performance luminaires is suitable for TL-D or TL5 fluorescent lamps and a wide range of optics. Optics are supplied with the luminaire on request with a choice of direct, direct/indirect lighting. Optics for asymmetrical lighting can be used in combination with a top mirror for higher performance on request. Straight coupling pieces allow connection of luminaires in a line.There are two different top covers: cover-solid and PC-indirect (D/I version).The luminaire is developed with ease of installation in mind, it can be suspended without removing the optic and lamp during installation.