3-Way Soft White Light Bulb, 580/1640/1860 Lumens, 50/100/150-Watts
GE, 50/100/150W, 3 Way Soft White Light Bulb, A-Line A-21, Maximum Overall Length 5-1/4", Medium Base, 1500 Hours/580 Lumens @ 50W, 1200 Hours/1640 Lumens @ 100W, 1200 Hours/1860 Lumens @ 150W.