Philips SOX 135W BY22d at reduced prices! Take advantage of Philips quality with important discounts for large quantities! Fast shipping, do not hesitate to contact us! Philips SOX 135W BY22d details Philips SOX light bulbs are low pressure sodium vapor discharge lamps that offer outstanding luminous efficiency over time. These lamps are highly efficient thanks to the uniform distribution of sodium in the discharge tube. With a diameter of 66 mm, Philips SOX 135W BY22d lamps have a BY22d base. Philips SOX 135W BY22d lamps provide a light at a color temperature of 1800K, which corresponds to a monochromatic yellow light. The luminous flux is of 22600 lumen. Also, the lifespan of Philips SOX 135W BY22d lamps is very long, near 18000 hours. These lamps are also equipped with a UV filter, which will protect against the discoloration of objects. Use of Philips SOX 135W BY22d Philips SOX 135W BY22d are used for lighting on airports and lighting in harbours with a strong light emission.