Attributes . 5 in, 5 Diopter Round Glass Lens (2.25x Magnification), Cool Operating Temperature, Exceptionally Long LED Element Life (minimum 20,000 Hours), High Intensity Energy Saving LEDs, Ideal for Assembly, Workshop or Inspection Applications, Mounting Clamp Allows for Easy Attachment to Desk and Bench Top, Spring Arm Stays Set in any Position, Super-Slim Modern Design . Names