Rechargeable SMD LED tube (60LED) Model: SF-989UL60 Input voltage: DC 5V Input power: 5W Rechargeable lithium polymer battery 3.7V1Ah x2pcs Super bright SMD LED (0.064W) x 60pcs LED lights about 720 lumens DC operation Charging time is about 6 hours Accessories provided: USB charging cable Battery runtime: Soft and bright-about 4 hours Intense and bright-about 2 hours