LED tube bulb Essence G13 T8 with 18.3 watts and cool white light colour With its 2,200 lumens, the Essence LED tube bulb with G13 base is the modern, bright version of the familiar old fluorescent bulbs. In contrast to conventional fluorescent tubes, LED tube bulbs are significantly more economical and efficient, especially in terms of energy costs. They also have a much longer service life. Ideal for general lighting in offices, industry, warehouses or car parks - For operation with conventional ballast (CB or EM) - Length 150 cm - Cool white (4,000 K)