Very efficient LED lamp with filament optics and only 2.5 watts with high lumen output The ultra-efficient Eco-Line lamps from Paulmann combine innovation with sustainability. Thanks to the 60 % lower energy consumption and the significantly longer service life compared to standard LED lamps, energy costs can be significantly reduced and the environment can be protected. The visible filament and the bulb made of solid glass provide an additional decorative eye-catcher, especially in luminaires with an open design. Thanks to the universal white light colour, concentration is promoted.