The LEDVANCE SubstiTUBE Advanced DC T8 18W 4000K offers an efficient and eco-friendly LED alternative to T8 fluorescent lamps, delivering high luminous efficacy up to 116 lm/W. Designed for operation with external LED drivers such as LVED PRO, this tube provides flicker-free, full-brightness lighting with no warm-up time. Ideal for a wide range of commercial applications, including offices and public buildings, it ensures consistent color, high energy savings, and long-term performance in ambient temperatures from -20°C to +45°C.