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Your cart is empty.The Ultra Sun is a 6500K high intensity trichromatic full spectrum daylight lamp. With a CRI rating of 98, it provides excellent color reduction for optimum viewing of your freshwater or marine fish and live corals with a balanced full spectrum of visible light and UVA. Promotes photosynthetic processes in plants and marine algae. Ideal for all freshwater and marine fish as well as reef tanks. Zoo Meds line of fluorescent aquarium lamps are made in Europe for ultra high quality, color, and longer burn life. Our energy saving T-8 sizes can save you up to $30.00 per year in electricity over the thicker T-12 size lamps. Effective up to 10,000 hours.
Gladys Ramirez
Reviewed in the United States on May 27, 2025
It fit amazing for my fish tank
Customer
Reviewed in the United States on May 15, 2025
Very Good product
robert kirk
Reviewed in the United States on March 7, 2025
All good
Driver
Reviewed in Canada on February 27, 2025
NOT as advertised.Its NOT very bright in plant aquarium.
blutz
Reviewed in the United States on January 28, 2025
This bulb burnt out in one week.
Leonard S
Reviewed in Canada on April 9, 2025
Stopped working after two weeks...
Ronald B.
Reviewed in Canada on May 11, 2024
Do not buy this product! Installed and won’t stop flickering
Cameron Cromie
Reviewed in the United Kingdom on June 28, 2017
Excellant value fits perfected
Bryan Hohlt
Reviewed in the United States on December 17, 2015
It made the tank brighter but didn't do much in the way to save my amazon swords. I'm pretty sure it's because of the height of the tank considering it's a 29 gallon. I would purchase this bulb again though just because I do like how it makes the fish tank look. This type of bulb would probably work well in a 20 long or a tank that is a little more shallow.
don
Reviewed in the United States on October 31, 2015
In a 55 gallon tank it's not all that bright but I didn't honestly expect it to be much brighter than any other 32w bulb. By itself I'm not a fan of the color it appears orange-ish to me. I like more of a white/blue color in my tanks, but with some blue LED's the tank looks great almost looks like the fish are swimming in air.
Adrian P. Gee
Reviewed in the United States on October 19, 2013
I have been trying to develop a planted fresh water aquarium over the years and have had varying luck until I tried these lamps. They have made a tremendous difference and my tank now contains flourishing plants. The lights are on about 14 hours a day and they need to be changed about every 6 months for full efficacy. The tank is completely stable now and requires very little care. Be careful when ordering from Amazon. If you click on the 24" size be sure that this is what ends up in your basket - for a while the size would change from 24" to 18" due to some problem with the link
Anthony L.
Reviewed in the United States on October 8, 2012
shopped long and hard for these bulbs, as the hood of my tank is very picky as to the type of bulb and watts it will take. well needless to say, I am very happy with this choice. my plants are doing great (growing), and just a side note, i do have a layer of substrate, now i don't know if this helps, but sure cannot hurt. my fish seem to enjoy it as well and during most of the year, don't need to use a heater in my tank, stays about 76 degrees (F), 30 gallon tank.
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