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This saltwater‑powered LED flashlight is a battery‑free lighting solution designed for camping, emergencies and everyday home backup. It uses only salt water or seawater to generate electricity, providing long runtime, safe operation and reliable illumination for outdoor gear and survival kits.

This disposable LED salt water flashlight activates instantly once you add the correct mix of water and salt, turning ordinary resources into clean power. It is ideal as a Camping flashlight, Emergency flashlight and Outdoor flashlight that can stand on a table, countertop or rock to serve as a hands‑free Work light and Area light. Thoughtful design and long shelf life make it suitable for households, vehicles, schools, workplaces and disaster‑relief storage.
Battery‑free design: No dry cells or rechargeable batteries required; just add salt water or seawater to power the LED.
Long total runtime: Each refill delivers over 8 hours of usable light, and the internal aluminum energy cell supports around 100–120 hours of cumulative illumination over its life.
Ready for emergencies: Can be stored for years without self‑discharge, making it a dependable choice for Emergency lighting and Survival gear.
Safe and eco‑conscious: Uses non‑toxic materials and produces no harmful leakage or explosion risk, suitable for homes with children and elderly people.
Multi‑scenario use: Ideal as Camping flashlight, Outdoor flashlight, Hunting flashlight, Work light and Area light for camping, hiking, fishing, hunting, night reading and science education.

| Item | Description |
|---|---|
| Product name | Disposable LED Salt Water Flashlight |
| Model | RS‑M‑003 |
| Power source | Salt water / seawater electrolyte (no battery, no charging) |
| Rated LED power | 1 W high‑efficiency white LED |
| Energy capacity | Approx. 105 Wh aluminum electrode |
| Total lighting time | About 100–120 hours (with repeated saltwater refills) |
| Per‑fill runtime | Typically 8+ hours, depending on environment and usage |
| Recommended electrolyte | 3%–10% salt solution (e.g., 10 g table salt + 100 ml water) or seawater |
| Product dimensions | Approx. 90 × 41 × 85 mm (L × W × H) |
| Product weight | Approx. 90 g (empty, without water) |
| Housing material | ABS plastic, aluminum, electronic components |
| Shelf life | Designed for long‑term storage without loss of power before activation |
| Certifications | CE, RoHS (varies by batch/market, can be customized for projects) |
| Origin | Made in China |
The flashlight contains an aluminum power cell and internal salt water tank; when you pour in water and dissolve salt to the proper concentration, a chemical reaction generates electricity to drive the 1 W LED. Users can simply refill with fresh salt water when light output weakens, repeating this process until the aluminum electrode’s service life is reached. For best performance, empty the liquid and rinse the tank with clean water if the product will not be used for several hours, and avoid placing the exhaust port face‑down to reduce the risk of leakage.

This saltwater‑powered LED flashlight is a battery‑free lighting solution designed for camping, emergencies and everyday home backup. It uses only salt water or seawater to generate electricity, providing long runtime, safe operation and reliable illumination for outdoor gear and survival kits.

This disposable LED salt water flashlight activates instantly once you add the correct mix of water and salt, turning ordinary resources into clean power. It is ideal as a Camping flashlight, Emergency flashlight and Outdoor flashlight that can stand on a table, countertop or rock to serve as a hands‑free Work light and Area light. Thoughtful design and long shelf life make it suitable for households, vehicles, schools, workplaces and disaster‑relief storage.
Battery‑free design: No dry cells or rechargeable batteries required; just add salt water or seawater to power the LED.
Long total runtime: Each refill delivers over 8 hours of usable light, and the internal aluminum energy cell supports around 100–120 hours of cumulative illumination over its life.
Ready for emergencies: Can be stored for years without self‑discharge, making it a dependable choice for Emergency lighting and Survival gear.
Safe and eco‑conscious: Uses non‑toxic materials and produces no harmful leakage or explosion risk, suitable for homes with children and elderly people.
Multi‑scenario use: Ideal as Camping flashlight, Outdoor flashlight, Hunting flashlight, Work light and Area light for camping, hiking, fishing, hunting, night reading and science education.

| Item | Description |
|---|---|
| Product name | Disposable LED Salt Water Flashlight |
| Model | RS‑M‑003 |
| Power source | Salt water / seawater electrolyte (no battery, no charging) |
| Rated LED power | 1 W high‑efficiency white LED |
| Energy capacity | Approx. 105 Wh aluminum electrode |
| Total lighting time | About 100–120 hours (with repeated saltwater refills) |
| Per‑fill runtime | Typically 8+ hours, depending on environment and usage |
| Recommended electrolyte | 3%–10% salt solution (e.g., 10 g table salt + 100 ml water) or seawater |
| Product dimensions | Approx. 90 × 41 × 85 mm (L × W × H) |
| Product weight | Approx. 90 g (empty, without water) |
| Housing material | ABS plastic, aluminum, electronic components |
| Shelf life | Designed for long‑term storage without loss of power before activation |
| Certifications | CE, RoHS (varies by batch/market, can be customized for projects) |
| Origin | Made in China |
The flashlight contains an aluminum power cell and internal salt water tank; when you pour in water and dissolve salt to the proper concentration, a chemical reaction generates electricity to drive the 1 W LED. Users can simply refill with fresh salt water when light output weakens, repeating this process until the aluminum electrode’s service life is reached. For best performance, empty the liquid and rinse the tank with clean water if the product will not be used for several hours, and avoid placing the exhaust port face‑down to reduce the risk of leakage.
