2 are the same model and one is slightly different. I had them on a 30" tank roughly 10" above the surface of the water and was growing coral for 3 years on my sandbed. I couldn't tell the difference looking at the tank which model was different but a couple people who came over could tell the difference. They do not dim, only on/off. Two channels for blues and whites. They have optics but I can't remember what exactly.
$50 a piece. For this price they would be awesome for a frag tank at a swap or even on a tank at your house. I have been suing them for 3 years so take into account that they may only have 2 or so years left if you're using them on a display. Text for pics. 570-578-6787
$50 a piece. For this price they would be awesome for a frag tank at a swap or even on a tank at your house. I have been suing them for 3 years so take into account that they may only have 2 or so years left if you're using them on a display. Text for pics. 570-578-6787
