LED compact fluorescent lamp with 24 SMD LEDs 36x147mm LED lamps are innovative and energy-saving light sources. With only a few watts of power consumption, they provide a very bright, pleasant light. In contrast to energy-saving lamps, LED lamps are very environmentally friendly. They protect the environment during production, operation and disposal, as they do not contain any harmful substances., Temperature range: -20° to +40°Mercury content (mg): 0Switching cycles: >25000Ignition time/start time (s): 0.0Color rendering index (Ra): 85Luminous flux maintenance: 0.70Power factor: >0.5SDCM: