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gobie

dave the gobie
Joined
Dec 2, 2004
Messages
366
Location
Auburn
I had a 55 gal reef tank a couple of years ago that i ran using a ice cap 660 ballast and 4 95 watt power compact bulbs. The tank had a wonderful blue white appearence to it and the corals seem to have flourescence better. i stepped up in the size to a 75 gallon tank last spring and went vho. I am using 48" 110 watt uri actinic and actinic white bulbs. I expected the coals to have a better appearence switching from 10k 95watts to 12k 110 watts. I don't care for the appearence of my tank, it looks pink not blue/ white.
are compact flourence that we use in the hobby rated the same as ones used around the house. where it uses x number of watts and is equivelent to an x watt bulb. so does a 95 watt pc use 95 watts and is equivelent to a higher wattage standard or is that the output of the bulb. can anybody shed some light on the subject?????? :confused:
 

dnjan

alveopora
Joined
Sep 9, 2003
Messages
1,585
Location
Seattle
Did you have reflectors on the PC's? And do you have reflectors on your VHO's? I don't really think that the reflectors inside the URI VHO bulbs are that good.
 

gobie

dave the gobie
Joined
Dec 2, 2004
Messages
366
Location
Auburn
i haven't used reflectors after the first two years in this hobby they always get coated with salt creep.
 

gobie

dave the gobie
Joined
Dec 2, 2004
Messages
366
Location
Auburn
ihave almost thought about going mh but my tank is lps so i don't really need that intensity of output, pluse the heat and power consumption is more than i care for.
 

MikeS

Well-known member
Joined
May 23, 2004
Messages
1,654
Location
Wyoming
The wattage rating on the bulb relates to energy consumption, not output. PC's however, tend to have a higher watt per watt lumin output than other flourescent bulbs due to the smaller tube diameter.

The visual difference you noted (blue vs. pink) is likely due to the phosphors in the different bulbs.

MikeS
 
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