These are one of my favourite bulbs both for DE and SE. At $110 each though....ouch! You're right about the spectrums though, so many bulbs concentrate on one color (often the case with blue bulbs), and lack so much in the other colors that they don't make the corals POP like a good bulb will. The Phoenix 14K I think is relatively comparable to the Giesemann 13K though, so it's a good bulb for those of us on budgets.
