Features: Portable power supply system. Green Energy Solar and Electrical charging. Output power for portable devices charging, home appliances operation, lighting, automotive backup power etc. Fuse Protection. Bluetooth Audio Player and FM radio. Accessories includes light bulb, solar panel provided. Specifications: Power Option: 20W, 30W, 40W Battery Capacity: 12V10Ah(20W), 12V20Ah(30W), 12V30Ah(40W) Battery Power: 111Wh(20W), 240Wh(30W), 360Wh(40W) Battery type: Lithium Charging: By Solar, by AC110~230V Audio Input: Bluetooth 5.2, USB FM Frequency: 88~108MHz Dimensions: 30x14x23CM (Main Unit), 36x16.8x28CM (Main Unit with Gift Box), 20.5x8.5x36.5CM (LED bulbs and Cables Package), 56x23x38CM (Outer Carton Package) Weight: 6KGS (20W), 8KGS (30W), 10KGS (40W) Bulbs includes: White color, 2pcs x 3W + 2pcs x 5W(20W), 3pcs x 3W+3pcs x 5W(30W and 40W)