3W LED Bulb Specifications:
Input voltage: 90 to 264V AC
Socket: E27/B22/E14
Frequencies: 47 to 63Hz
LED quantity: 3 pieces
Power factor: ≥ 0.90
Power efficiency: >82%
Luminous flux: 240 to 280lm
Color temperatures: 2, 500 to 7, 000K
Color index (CRI): ≥ 75
Working lifespan: ≥ 50, 000-hour
Operating temperature: -10 to 60° C
Light body material: Aluminum-alloy

4W LED Bulb Specifications:
Input voltage: 90 to 264V AC
Socket: E27/B22/E14
Frequencies: 47 to 63Hz
LED quantity: 4 pieces
Power factor: ≥ 0.90
Power efficiency: >82%
Luminous flux: 320 to 370lm
Color temperatures: 2, 500 to 7, 000K
Color index (CRI): ≥ 75
Working lifespan: ≥ 50, 000-hour
Operating temperature: -10 to 60° C
Light body material: Aluminum-alloy