Can I change out the bulbs in the Marineland Double Bright Light?

turtle10

My flourescent light fixture broke so I am now looking for a new lighting system for my 55 gallon Goldfish tank. I came across the marineland double bright led hood and it seems like it could fit my needs. I was especially interested in the moonlight feature. However, the total LUX of the blue light is 460nm, and I read real moonlight is more in the 470-480nm range. Would it be possible to somehow replace the 460 nm bulbs with some 470nm bulbs?

If not, would it be possible to just add some extra leds on it? I was planning on building my own fixture anyways, but if I got this and just added the extra 470nm bulbs it would make things soo much easier. I know I would have to have a separate power source, but at least I wouldn't need a heat sink.

Here is a link to the light. If you click on photos you can see how there is a lot of space in between the bulbs.

Tazman

The moonlight feature is more for your viewing pleasure unless you have a reef tank when the corals need a daylight and night cycle.

I had the same light for a bit on my 75g tank and hardly ever used the moonlight LEDS. I would highly recommend adding a SEPARATE unit with the correct wavelength if you need the night LEDS. Messing with the internals of the light will INVALIDATE the warranty and not to mention the electrical aspect done wrong, would potentially cause your serious injury or even death...it takes very little electrical voltage to stop your heart if things go wrong.

turtle10

Ok so do you think it would be okay to just attach the extra leds externally?

Tazman

In my honest opinion I think it is un-necessary to get different LEDS unless as mentioned you need them for Corals in a saltwater tank.

In answer to your question, you would need to buy / make a separate unit for them, running independently off the other fixture. Moonlight is basically a reflection so is actually around 5000k, however we would never run a 5k light at night as it would be annoying to us.

The lights you have are fine for moonlight and will be quite bright anyway.