Refurbishment batten for replacing ZX luminaires with conventional 1/58W fluorescent lamps in ZX continuous rows. Energy-efficient LED technology with 64 highly efficient mid-power LEDs per segment. LED service life lasts 100000 h before luminous flux is reduced to 95 % of the initial value. Chromaticity tolerance (initial MacAdam): 2. Luminaire efficacy: 181 lm/W. Total luminous flux: 5690 lm. Symmetric wide distribution luminaire. Colour rendering Ra > 80, colour temperature 4000 K. Split lens concept for reducing perceived glare. Overlapping PMMA lenses (shatter-resistant to IK07) achieve IP50 protection for LED and optic. Simple electrical and mechanical connection without tools via Clix system; phase selection at connector. No ultraviolet or infrared radiation. Ambient temperature: -20°C to +35°C. Luminaire wired with halogen-free leads, silicone-free. Note: please talk to your consultant regarding use in environments containing chemical pollutants.