Ring-shaped LED tubes for electromagnetic ballasts 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. Light output: up to 100 lm/W. Product advantages: Simple, quick and safe lamp replacement without rewiring. Energy savings of up to 50% (compared to T9 fluorescent lamp on KVG). Also suitable for operation at low temperatures. Areas of application: General lighting in ambient temperatures of 20+45 °C. Corridors, stairwells and parking garages. Household applications. Decorative applications. Technical equipment: Suitable for operation with low-loss and conventional ballasts.