‎1.9 inches

Specifications, MR16 7w 60 degrees led bulbs 12v, 2700k warm white, non-dimmable, the beam angle is wide 60 degrees, if you need 38 degrees we also have.
Save electricity bill & Save your money, replace mr16 50 watt 60 watt 75 watt halogen by 7w led, 560lm, very bright.
Easy installation, standard mr16 shape (size 1.97*1.9inch)with gu5.3 bi-pin base, can be easily replace traditional mr16 halogen bulbs.