General led desk lamp how much a led lamp is usually how many watts
With 7 w leds is enough.Long time reading or writing homework eyes not easy fatigue!
Also suggested that the lamp choose warm white color temperature (3000 k), or natural white color temperature (4000 k), light color not only warm but not dazzling, long time reading or writing homework eyes not easy fatigue!
Generally a combination of desk lamp and lighting conditions can choose 3 w - 5 wled ball bubble lamp, high again feel too dazzling,
