LED reading lamp/LED desk lamp/LED studying lamp/LED tube/LED bulb With rechargeable battery as power or AC 220V power to keep working Fully charge time approximate 8-10 hours, battery work time approximate 5 hours AC110~240V input voltage is converted to DC6V through PCB electronic board so as to supply power to LEDS for lighting 40units of DIP F5 LED, 4~5.5Lumens/unit, 0.06watts/unit, brightness approximate 180~200LM, 2000MCD, LEDs' lifetime over 50,000 hours, CCT: normal white color, 5000K~6000K FR-4 board Material: ABS Lamp shape can be folded 1.3 meter long wire can be taken out freedom Anodized/printed white/red/blue colors With CE and RoHS certificates Packaging info: 1pc/color box Color box size: 13.5 x 13 x 37 (cm) 9pcs/master box Master box size: 41.5 x 40 x 38 (cm) N.W./G.W.: 8KG/9KG