Hamilton Technologies Screw Socket Bulbs 175W 6500 degreeK Superbrite Day American Made
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Excellent Color
I use the Hamilton 250 Watt 14K and WOW - I LOVE the color from this bulb. I have used several different metal halide bulbs but I find this one to be the perfect balance of blue and white light. It draws out a lot of fluorescent color from my corals. My corals have opened up well and are growing more than before. My frogspawn looks great under this bulb. I recommend it.
July 28, 2012
These bulbs work very well
So far my salt water tank appears to be doing very well with these bulbs. The soft corals appear to be thriving under the new lighting and the tank itself is very brightly lit up. The only drawback is that on start up these bulbs are considerably louder than my old ones. They do quiet down after a while though. Other than that I am very satisfied and would recommend these to someone with a larger tank that needs good penetrating light.
March 13, 2013
 "Hamilton Technologies Screw Socket Metal Halide Bulbs")
Screw-socket metal halide bulbs in a wide range of color temperatures and wattage to reproduce natural light conditions found in the ocean. Significantly brighter than other types of bulbs, metal halide bulbs can be used alone or with Actinic bulbs for a bluer effect. Use with any appropriately sized mogul socket metal halide lighting unit.
