E27 6W LED Lamp Filament Rustika Curved Line Spiral Nostalgia meets efficiency – this is probably the most accurate way to describe the Rustika LED lamp. The twisted LED filaments are modeled after the classic filaments and are surrounded by a clear solid glass body. – dimmable with many common dimmers (Eltako, Gira etc.) – very good color rendering Ra90 – very long life and very good switching stability