Hi,
Thanks for the inquiry, I took a look at the unit myself and the reflectors are not adjustable. The HQI lamp openings are situated about 7 inches from the end of the fixture; the openings themselves measure 7 inches and are spaced about 20 inches apart from each other.
The HQI lamps will have an illumination radius of about 2 feet by 2 feet; unfortunately they can’t slide towards the center of the fixture. The picture seems to be fairly accurate that’s provided by the manufacturer; unfortunately the picture listed on our website does not show a lot of the sleek design lines of the fixture. It really is a great looking fixture.
If you would like more information on the fixture please feel free to contact us at 1.800.566.3474
Walter
Marine Depot Customer Services