Life: 1000 Hours. Light Output: 750 Lumens. Energy Used: 75 Watts. Heavy duty filament! Resists rough handling and shock. Use in applications where regular household bulbs may not survive: Home workshops; Automotive shops; Machine shops; Worklight. Specially designed for use under certain heavy-duty work conditions where regular household bulbs may not survive. Built to take it. Rugged filaments and mounts inside the bulb resist rough handling and shock.