... High luminous efficiency, long lamp life Application: hotel, office, meeting room, restaurant, etc. LED BULB LIGHTModelVoltWattColor TempLumenWork TempHQ-SP- ... life span: ≥30,000h High luminous efficiency, long lamp life Features:1. Uses black anodised aluminum for a ... other such indoor scenes.4. High luminous efficiency, long lamp life, low power consumption, environmental friendly. Application: hotel ...