Salt + Water = 120 Hours of Light: The Ultimate Emergency Lamp
10-year standby light insurance increases survival rate in case of emergency
◆ For Families
・Powers through 5-day blackouts
・Safe for elderly/children (no fire risk)
・Medical-grade reliability for night meds
◆ For Adventurers
・Sailors: Seawater activation at sea
・Hikers: Use stream water in mountains
・Campers: 0.3kg vs 2kg traditional lanterns
◆ For Crisis Responders
・Signal in case of distress: Flashing mode transmits location to rescue team
・Safety on ships: Lifesaving light that works immediately in seawater.
・Medical field: Auxiliary light source for treatment in case of power failure

▼Three major reasons why this product is chosen
✓ Continuous lighting for 5 days with 200ml water + salt
✓ 10mm ultra-thin and stores neatly in your disaster prevention bag
✓ Long-term stockpiling design that can be stored for 10 years if not used
Five major revolutions over conventional products
✓ Safety revolution: zero risk of ignition (PSE/SG certified)
✓ Economic revolution: Cost 50 yen per use (80% reduction compared to candles)
✓ Environmental revolution: 90% recyclable plastic at disposal
✓ Convenience revolution: Starts up in 2 seconds (no need to change batteries)
✓ Lifetime revolution: 10 years of storage

Rated output | 0.2W |
Brightness | LED lighting: 0.2W(80lm) |
Lighting time | 120 hours |
Salt water injection capacity | 200ml |
Weight | Main body 300g, 500g including salt water |
Size | 180*120*10mm |
Operating temperature | 0-50℃ |
FAQ
Q: How does this “saltwater light” glow? What is required to activate it?
A: This saltwater lamp works by causing a chemical reaction between the metal inside (e.g., aluminum plate), carbon sheet, and salt water acting as an electrolyte to generate electricity to light the LEDs. To activate, simply mix one of the bags of salt provided with the product with approximately 200 ml of clean water to make salt water, which is then injected into the main unit. No prior charging is required.
Q: Once activated, how long does the light stay on? How bright is the light?
A: Once properly activated, the lamp will continuously illuminate for more than 120 hours (approximately 5 days or more). The brightness is 30 lumens (lm) and the power consumption is 0.2W. It is bright enough to illuminate the inside of a tent or part of a room, and is suitable for reading, simple tasks, and checking the surroundings.
Q: What are the two modes, “always on” and “flashing”, for?
A: The always-on mode is suitable when continuous illumination is required (e.g., for indoor lighting at night, work lights, etc.). The flashing mode is effective for emergency signals, alerts, and when you want to increase visibility from a distance (e.g., outdoor position indication, rescue signals, etc.). The mode can be easily switched by a switch.
Q: What is the storage period before activation? How should I store them?
A: The product can be stored for a very long time (e.g., more than 10 years*) if it is unopened and unactivated. When storing, keep the product package intact in a cool, dry place out of direct sunlight, avoiding high temperatures and humidity. The salt bag provided should also be kept sealed.
Q: Is this saltwater lamp safe to use, especially indoors? Is it an environmentally friendly product?
A: Yes, it is very safe. There is no risk of fire as with candles, and no harmful gases are emitted, so they can be used safely indoors. In addition, the materials used are selected for their low environmental impact and do not contain toxic heavy metals such as those found in common dry cell batteries.
Q: What are the dimensions and weight of the product? What are the advantages of the low-profile design?
A: The dimensions are very thin, approximately 180 mm × 120 mm × 10 mm. The main unit weighs approximately 0.1 kg (when dry), and the total weight after salt water injection is approximately 0.3 kg, making it lightweight. This thin and lightweight design allows the product to be easily stored in a small space, such as in a disaster prevention bag or in the space between bookshelves, making it very convenient to carry around. It can also be hung on a wall or stood on a stand for greater flexibility in installation.
Q: Can I use any salt or water? Do I always need the salt bag that comes with it?
A: We recommend that the salt bag provided be mixed with fresh water, as it has been adjusted to perform at optimal salt concentration. In an emergency, table salt and possibly seawater may be used, but performance (lighting duration and brightness) may vary. Please use the supplied salt whenever possible.
Q: Can this lamp be used repeatedly and what should I do after 120 hours?
A: The saltwater lamp is designed to continuously light up for more than 120 hours with a single injection of saltwater, and power generation ends when the internal metal electrodes are depleted. Basically, the lamp is used up after this continuous use cycle. When power generation is finished, drain the salt water inside and dispose of it properly according to the instructions of the local government. (*If the model can be reused by replacing the electrodes, etc., this should be noted. We are assuming here a typical use-up type.)
Q: Can the light be turned off and back on again in the middle of the day after activation?
A: Yes, the product is usually equipped with a switch to turn the power on/off and to switch the lighting mode (always on/blinking). Therefore, the light can be turned off and back on again as needed after startup.
Q: What is the temperature range over which it can operate?
A: This saltwater lamp can be used in ambient temperatures from 0°C to 50°C.