Ocean SIGNAL RescueMe EDF1 This compact signal lamp uses a red LED. The RescueMe EDF1 is suitable for one-handed operation under adverse conditions and is waterproof up to 10 m. It is visible at up to 10 km and can operate for up to six hours. The light output is a beam of more than 30° covering the full 360° azimuth, providing more than six times the light range of any other electronic flare. It is a genuine alternative to pyrotechnic flares and is significantly superior in terms of service life and safety, also featuring four lighting modes, including SOS. Battery life when not used: 10 years. Dimensions: 20 x diameter 5 cm, weight: 155 g.