LED tubes in ring shape for electromagnetic ballasts (KVG/VVG) and mains voltage. Product features: LED alternative for classic T9 fluorescent lamps in KVG luminaires. Homogeneous illumination. Service life: up to 30,000 hours. Mercury-free and RoHS-compliant. Product advantages: Simple, quick and safe lamp replacement without rewiring. Energy savings of up to 50% (compared to T9 fluorescent lamp). Also suitable for operation at low temperatures. Can be operated directly on 230 V mains voltage. Areas of application: General lighting in ambient temperatures of -20.+45 °C. Corridors, stairwells and parking garages. Household applications. Decorative applications.