WYZM 4-Pack LED T3 Halogen Light Bulb, Torchiere Light Bulb, replacement for Halogen Flood Lamp,5w Equal to 75w and 10w equal to 150w Halogen Bulb (White, 4.64 Inches) 4.6" 10w bulb works well to replace a 100-300W halogen bulb,3" 5w is good to replace 60~100w halogen bulb Packing:4pcs 5w or 10w R7S led bulb Please choose the right size and color for your need Non dimmable works from 100-240V AC Please understand that the bulb is 9/16" or 0.5626" from center of the contacts to the rear of the bulb, this was a perfect fit for bathroom fixture after removing the heat shield.