One side is a true super actinic blue 03 420nm that promotes photosynthesis essential for the health of corals & invertebratesSecond side is a 10,000K super daylight with full spectral output essential for the health of plants, coral & invertebratesGreat bulb to use on systems with only compact fluorescent bulbs for an even light spreadIntensifies the beauty & vibrant color in fish, coral & marine life
Customer Reviews for Hamilton Technology Compact 2-in-1 Actinic & Daylight 420nm Blue/10K White Square Pin Aquarium Lamp
Review 1 for Hamilton Technology Compact 2-in-1 Actinic & Daylight 420nm Blue/10K White Square Pin Aquarium Lamp
Great replacement compact fluorescents
PostedAugust 29, 2012
from Miamii, FL
These were a well priced replacement for the original bulbs in my reef aquarium. Reasonably priced, and fulfill the lighting requirements for my 55 gallon salt water reef tank. I bought and use one 65 watt and one 96 watt with phased in timing when each of these come on during the day. The only thing that stopped me from giving 5 stars is that they are somewhat skinnier than the originals, so the clamps in my lighting units would not hold them in place and I had to use my own means to hold them in the fixture.