The best price for Philips SOX-E 36W BY22d ! Fast shipping. First choice Phillips in large quantities at great discounts! Do not hesitate to contact us! Philips SOX-E 36W BY22d technical characteristics Philips SOX-E light bulbs are low pressure sodium vapor discharge lamps that offer outstanding luminous efficiency. Master SOX-E are more efficient than Philips SOX classic lamps because they have less thermic loss, resulting in improved efficiency. Philips SOX-E 36W BY22d light bulbs have a BY22d base and a diameter of 52 mm. Philips SOX-E 36W BY22d light bulbs provide a monochromatic yellow light (1800K) for a light intensity of lumen. Also, the lifespan of Philips SOX-E 36W 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-E 36W BY22d These lamps are used for lighting on airports and lighting in harbours with a strong light emission.