The Dual actinic bulbs are one tube connected at the end, but have different phosphors coating each side, so it is impossible for only one tube to work. The 460nm side is quite a bit brighter visually than the 420nm side, however the 420nm side will penetrate farther down into the water column, causing corals to fluoresce. If you put a piece of paper between the two tubes you can see each tube’s color more distinctly.
Articles in this section
- Replacement parts: ORBIT EXTREME CFL Fixture 48" 4x130W (2) Dual Daylight (2) Dual Actinic
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- I need Model 2050 ft130w dual actinic 420/460nm sunpaq.For saltwater reef
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- The pins on my new SunPaq bulbs seem wider and it is harder to insert them into my socket-is there something I am doing wrong?
- The 420nm side of my Dual Actinic SunPaq bulb does not appear to be working-is it defective?
- There is a green/clear oily substance on the pins of my SunPaq bulbs-is this normal and should I wipe this off before installing the bulbs?
- How often should I replace my SunPaq bulbs?