The best lighting for SPS By Jackson6745 on 9/17/2017
Jackson6745 would recommend this product to a friend
I have evolved over to Radion G4's, but this bulb has been the standard for all my lighting comparisons. With a 400w radium I've had the best combination of colors and growth in my SPS tank over any other lighting.
Life Span By Joseph on 12/11/2015
Joseph would recommend this product to a friend
This 400 watt light bulb is amazing needless to say and love how easy it is to light up my 93 gallon cube. I run this bulb on a HQI PFO ballast like recommended. I have had this bulb for a year and believe it has lost its power of growing corals 6 months ago. I have read many places that these bulbs should be changed out every six months and that's ok. I love the look and my corals love them. I am going to experiment and try the Megachrome Crystal SE 400 watt which was made specifically for a 400 watt HQI ballast and said to last twice as long. Its more expensive but if it lasts twice as long is it???? Looks like $25 savings every 6 months. but if that doesn't work I would gladly pay more for the Radium.
No supplements needed By Jeremy on 11/16/2015
Jeremy would recommend this product to a friend
Great bulb. The only downfall is the price but I guess you have to pay a little more for an awesome bulb. Nice crisp color with some blue. I run them on Blue wave 7 ballasts. Love it. No supplements needed.
Good Bulb but Very Blue By Travis on 5/18/2015
Travis would recommend this product to a friend
This is a very good bulb but the color is quite a bit more blue than I like. It really makes the corals pop and gives a nice shimmer effect.
great par By machote on 3/27/2015
machote would recommend this product to a friend
in my humble opinion this lights are the best outhere i hope they could cost less because of the leds but it seems the quality of this bulb dont allow the price to low
coloration of this bulb By acalderon on 1/14/2015
acalderon would recommend this product to a friend
coloration of this bulb is very good for corale maintain backward sps
Great Bulb By Collin on 6/7/2013
Collin would recommend this product to a friend
These bulbs are not that much more than many of the others out there and the corals love them.
Extremely Blue By Brigette on 5/29/2013
Brigette would recommend this product to a friend
I had used "blue" and "purple" T5's before switching to Halides and this bulb gives off the most intense, blue light I've seen. It's working well.
Great bulb By Ray on 4/22/2013
Ray would recommend this product to a friend
I ordered 1 radium to go with the 2 I already have and shipping was fast and it was wrapped very good thank
excellent By rhino56 on 4/4/2013
rhino56 would recommend this product to a friend
This replaced a ushio 20k 400 watt bulb, The ushio is not a bad bulb at all, but this has a lot more brightness to it, completely beautiful color to it. I wont need any other bulbs except this now.