A spot directly under the lamp gets 600+ pairs. This is a 3 inch circle. Very nice light coverage afterwards. I like the color of the lighting in both plant and reef aquariums. They have grown plants superbly for me for 4 months and now they are dominating the reef on SPS. It's only been a week, but I don't see any problems with them. The price is quite competitive with the top of the range and I love the form function of this light. They don't reduce like my other lights and they have a hotspot that others don't, but they use less power to do it. For me they are inexpensive because electricity is very expensive where I live. There's a good chance I use 3 of these rather than 2 of the competing brands. I have money and it just looks good over the tank. Value for money depends on what you value.
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