Professional October 26, 2020 / 0 Welder1800W 0.5-0.6 Hours Concrete Vibrator840W 1.2-2.4 Hours Air Compressor975W 1 Hour Jack Hammer1260W 0.8-1.6 Hours Circular Saw1400W 0.7-1.4 Hours Drill1080W 1-2 Hours Drain Cleaner250W 4-5 Hours Bench Grinder1400W 0.7-1.4 Hours Share Post Off-grid UK