Coralife 05631 Actinic 03 T-5 Fluorescent Lamp, 30-Inch

• Enhances fish color as well as other organisms in your aquarium
• Emits light at the peak absorption spectrum
• Energy-efficent
• For use with saltwater and coral reef aquariums

It's a blue actinic light for a t5 fixture. What else can I say??? It didn't arrive broken so that's a plus.

Buy Coralife 05631 Actinic 03 T-5 Fluorescent Lamp, 30-Inch Now

I bought this to add a second light for my tank and to use it primarily at night with actinic lighting. Works great and doesn't get too hot. And what I really like is the fact it is very slim and fits perfectly on the front half of my glass canopy.