Yes it's a little different, more like MH then T5's and it is more directional so parts that are under over hanging rocks aren't lite up much but, the corals have responded well and have actually perked up and changed positions to get more lined up with the light and some like my star polyps have grown. I really like the Royal Blues for dawn and dusk they are amazing the way they make the coral almost iridescent. In full day they are a little more cool then the t5's they are 10,000k with some 4500k mixed in. and they shimmer. I liked the full day of the t5's more but the dawn/dusk is more impressive with the LEDs. Overall with the reduced electric use and no longer needing bulb replacements I'm happy, did I mention they're virtually silent?