Philips SOX 55W BY22d shipped quickly! Philips quality guarantee at low prices! Our customer service is available for any request! Do not hesitate to contact us! Philips SOX 55W 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. Each discharge lamp of the range has a BY22d base type. Philips SOX 55W BY22d have a diameter of 52 mm. Philips SOX 55W BY22d light bulbs provide a monochromatic yellow light (1800K) for a light intensity of lumen. The Philips SOX 55W BY22d lamp range are dimmable and energy efficient. Their lifespan is very long, 18000 hours on average. Philips SOX 55W BY22d use Mainly used for lighting harbors, these light bulbs can also be used with airport lighting. These lamps can also be placed in orientation signs or as safety lighting.