USB battery bulb, charge for 2-3 hours; use 6-8 hours. Composed of high-quality LEDs with high brightness and long service life. Aluminum base, perfect heat dissipation performance. High-efficiency light-transmitting lenses provide smoother and more uniform lighting effects. The USB plug is suitable for any place, and can be powered by mobile power, computers, laptops, mobile phone charger adapters, etc.<br><br>Hook design, the plastic hook is easy to carry and can be hung up or taken off at any time. Electric display:Yes Waterproof:Daily waterproof Charging:Solar + Direct charging Battery life:2-6H Gear position:5 modes (high light/strong light/low light/strobe flash/SOS) Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Plastic<br><br>Package Contents: 2 * rechargeable bulb<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.