Based upon energy costs LED's are your best choice.
There are other types of lighting that you mat want to look into.
Such as plasma lighting and cfl florescent induction lighting. Choose bulbs
that have a color temperature of 5500K or 6500K and a high color rendering index >90
An old post of mine.
The Coralife Aqualight LED
is using some well thought out marketing to showcase the companyís new LED light. Besides incorporating a sleek and straightforward approach to giving you all the details on the light Coralife has taken the time to sell on you its LED technology with the use of an interactive 3D PAR map
. Using an aquarium with 30 in. tall by 48 in. long by 24 in. wide they mapped out the PAR readings of the Aqualight and plotted them on the map. To make it even more interesting.
The interactive map allows you to select common species of SPS, LPS and soft corals along with clams to see where they would be best suited for placement in the tank. Just click on any area of the tank and it will show you which corals would fit best or you can click on the type of coral and then mouse over the species to show you where they would work the best under the light. Granted, these are just recommendations and youíll have to experiment in your system but this gets you in the ballpark. The PAR map data taken from Aqualight LED at 100% intensity, 14,000K color setting. Changing the color setting and intensity of the Aqualight LED will alter PAR values. You may wish to use a PAR meter to take readings for your preferred settings.
The AcanLighting Prism LED is a veritable cornucopia of different LED colors, neigh a fruit salad of the visible spectrum. Coming in black or silver housing, the 70 watt AcanLighting Prism is endowed with no fewer than eight colors of LEDs including blue and royal blue, 12K white, red, amber, green, cyan and magenta.
If you are wondering why green is incorporated it's because green light will increae the apparent brightness of the tank and it will make green plants look greener. Cyan is useful because all white leds have very weak output at this necessary wavelength. Red light at 720-750nm and amber light of 620nm is useful too for photosynthesis.http://reefbuilders.com/2012/02/23/a...ing-prism-led/
Read more: http://reefbuilders.com/2012/02/23/a...#ixzz1nGw1w2ul
I included this article because I don't remember and don't want to look up at this late hour to verify this led is useful for planted tanks.
Pictured above is a prototype dual chip indigo colored LED with not one but two
light emitting diodes under the same primary optic. Itís pretty hot right? Itís really nice having at least one light in the reef aquarium LED arsenal with a platform of individually replaceable LEDs, the MaxSpect Mazarra. The P Series Mazarra LED light already ship with six different LED colors including two indigo LEDs with peaks at 410
nm separately. Not one to let their irons cool, with the Mazarra now shipping worldwide MaxSpect is beginning to turn its attention towards the first crop of LEDs that users will be able to swap into their Mazarra LED fixtures.
In addition to the the cool white, neutral white, blue, royal blue and indigo LED colors already included in the Mazarra, we expect to see red, cyan, UV and dual chip versions of the indigo LED which will really help get more punch in the energetic low end of the blue light spectrum. Since the Mazarra has individually swappable LEDs it will be a cinch to trade out the dual chip 410
for their single core versions currently installed. Weíll report back on the brightness and appearance of the dual core indigo LEDs and also on the experience of swapping chips in the MaxSpect Mazarra LED.