I use the Geisemann bulbs - both mogul and DE. I have 400W mogul and 250W DE. Great bulbs!
Am also trying out the BLV 14k 400W bulb. It's a bit blue compared to the Geisemann but I like the colour. We'll see how the corals react.
Also have a couple of the Coralvue Reeflux bulbs that I am going to try and see how I like them.
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