Different from other similar products, our salt water lamp can light up as long as there is salt water, and it can be used intermittently for 200 hours, no need to charge or battery. A good choice as an emergency light. Easy to use, simply pour in about 15g of salt and fill with water up to the water level line. Household salt works just as well, and there are no strict requirements for water quality or purity. The foldable design allows for easy packing in a backpack or emergency kit. The lightweight construction and compact size allow you to carry it effortlessly and set it up anywhere you need. Our salt water emergency light requires no batteries, providing continuous lighting. Suitable for camping, hiking, backpacking and other outdoor activities. Experience the convenience and reliability of our emergency salt water lamp, a battery-free solution that ensures long-lasting illumination during critical situations. Item Name: Salt Water Lamp Material: ABS Features: Super Bright, No Battery, Compact Size, Portable Size Details: L: 20.05cm/7.89", W: 10cm/3.94", H: 1.5cm/0.59" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Salt Water Lamp