MR11 GU4 Halogen Bulb: 35x35MM, GU4 Base (4MM Between 2 Pins). Standard MR11 Shape, 10W, 38 Degree Beam Angle, 100LM, 12V Input Voltage, Fits All MR11 Sockets (Does Not Fit MR16). Dimmable: The MR11 GU4 Halogen Bulb is Dimmable, You Can Adjust the Brightness According to Different Lighting Needs With a Dimmer, No Flicker or Strobe. Instant On, No Delay. CRI>90, No UV Radiation, Better Protection For Your Eyes. 2000 Hours Lifespan: This lamp is made of high-quality materials, high brightness and low energy consumption ensure an average use of 2000 hours, reducing the hassle of frequent lamp changes. Application: MR11 GU4 spotlight bulbs are suitable for recessed lighting, track lighting, accent lighting, landscape lighting, landscape lighting. Widely used in offices, exhibitions, homes, hotels, museums, restaurants, shops, etc. Good Tips: This product is plug and play, easy to install and suitable for all MR11 lamp holders.