1. Number of beads: 128pcs 2. Lamp bead model: 2835 3. Lamp brightness: 24-26lm 4. White light color temperature: 6500K 5. Warm white color temperature: 3200K 6. Power: 1-10W 7. Voltage: 5V 8. Indicates: Ra>90 9. Dimming range: 1%-100% 10. Dimensions: outer diameter 260mm. inner diameter 210mm 11. Power supply: USB port power supply 12. Cable length: 2m