The ultra slim Brim spot head light from Tech Lighting features field changeable optics and an optional decorative glass collar. The latest advances in technology deliver an extremely powerful LED head without the bulk typically needed to conceal a driver and manage thermal performance. Includes field replaceable 7 watt, 855 delivered lumen, 2700K or 3000K field replaceable LED module Dimmable with low voltage electronic or magnetic dimmer (based on the transformer) Choice of 20°, 30° or 40° field changeable optics. As a general rule when using the Brim head, we do not recommend using greater than 33% of the maximum wattage specified for the low voltage transformer due to inrush current requirements. For assistance in calculations, please contact Technical Support.