Function: switch on top of lampshade/color temperature switching/stepless dimming Battery capacity: 5200mAh Charge and discharge time: 4 hours for charging and 5 hours for discharging Power: 3.7v 3w Color temperature: 3000K-4000K-5700K Color tolerance: ≤5 Colour rendering index: Ra≥90 Luminous flux: 200lm Lifespan: 20000H Material: ABS+iron