Features: 1. No Battery Needed: Salt and water LED emergency light only needs salt and seawater or urine (works different brightness), perfect for emergency, survival, camping, fishing, etc. 2. Easy to Use & 2 Light Modes: Open the seal. Add 15-40 grams of salt (more salt, brighter). Add water to the water level line. Shake it after sealing and wait for 15 seconds. Turn on the red switch and it will work immediately. Two adjustable lighting modes: continuous flash light. 3. Bright & Long-Lasting: The dissolved water flashlight is equipped with 3*50 lumen LEDs, 100mA output, and 0.5W low power consumption. Continuous use up to 288 hours and intermittent use up to 400 hours. 4. Reliable & Eco-friendly: Water light without harmful chemicals or pollutants. The liquid after use is safe to dispose of anywhere, as it is harmless and non-toxic. The water light bag can be stored on the shelf for 5 years before use. 5. Compact & Portable: The salt water flashlight is small and lightweight, comes with a long lanyard, easy to pick up and hang. Suitable for indoor and outdoor use at temperatures above -10℃/14℉. Specifications: Features: No Battery Needed: Salt and water LED emergency light only needs water and seawater or urine (works different brightness), perfect for emergency, survival, camping, fishing, etc. Easy to Use & 2 Light Modes: Open the seal. Add 15-40 grams of salt (more salt, brighter). Add water to the water level line. Shake it after sealing and wait for 15 seconds. Turn on the red switch and it will work immediately. Two adjustable lighting modes: continuous flash light. Bright & Long-Lasting: The dissolved water flashlight is equipped with 3*50 lumen LEDs, 100mA output, and 0.5W low power consumption. Continuous use up to 288 hours and intermittent use up to 400 hours. Reliable & Eco-friendly: Water light without harmful chemicals or pollutants. The liquid after use is safe to dispose of anywhere, as it is harmless and non-toxic. The water light bag can be stored on the shelf for 5 years before use. Compact & Portable: The salt water flashlight is small and lightweight, comes with a long lanyard, easy to pick up and hang. Suitable for indoor and outdoor use at temperatures above -10℃/14℉. Note: 1.The liquid in the bag is not drinkable. 2.Keep away from children. 3.Make sure the zipper seal is properly closed and do not keep it upside down. 4.Salt bag is not included. Specifications: Color: Green Output: 100mA Power: 0.5W Luminance: 3*50 Lumen LED Size: 20*10cm/7.8*3.9inch Weight: 58g/2oz Packing List: 1 * Salt water light bag 1 * Lanyard Package List: 1 * Salt water light bag 1 *