... generator 1. Air-cooled, OHV, 4-stroke 2. Low oil alert system 3. ISO/CE/SONCAP 4.One year warranty. Excellent quality ... ! 500W Gasoline generator Characteristics:1. two-stroke2. A compact and portable power ... protection, when the load is too high, the device will shut off itself, and protectthe generator from damage.3) compact structure, with ...