The maximum brightness output is 1500 Lumens.Maximum lumen output is achievable provided that the ROV Light has sufficient cooling to dissipate generated heat from the operation. The ROV light is designed for subsea applications; therefore, the brightness level will reduce as the light temperature rises to reduce the operating temperature. However, this is not a problem when submerged. Brightness is fully adjustable from 0% to 100% of the maximum Lumen output above. Therefore, the minimum brightness output is 0.