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Old 03-15-2013, 03:06 AM   #16
shloken38
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$38 is craziness for a light bulb! For that, spend the money on a nice fixture for the tank. You can easily find one for the same price of three of these bulbs.
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Old 03-15-2013, 03:07 AM   #17
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dwarf baby tears will grow in low light as long the plant is getting what it need.
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Old 03-15-2013, 05:04 AM   #18
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I'd rather pay $38 and then not have to replace the bulb for 5~8 years depending on run time and how well constructed the driver/heatsink of the bulb.
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Old 03-15-2013, 05:25 AM   #19
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Quote:
Originally Posted by shloken38 View Post
$38 is craziness for a light bulb! For that, spend the money on a nice fixture for the tank. You can easily find one for the same price of three of these bulbs.
Yeh might be better with a ray2 instead
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Old 03-15-2013, 05:27 AM   #20
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You'll want to use par38 bulbs like this. Next best thing are the EBay flood LEDs. Probably want the 20watt or higher. And you'd probably want to run three of either light choice to get the coverage over the entire tank.
what are some good cheap flood lights on ebay? I would only need 2 of these for the 40b...

My gut is telling me to get a ray2 and pay a little bit more... have a feeling ebay floodlights will break down fast.
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Old 03-15-2013, 10:36 AM   #21
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Default Screw in LED bulb for aquarium?

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I'd rather pay $38 and then not have to replace the bulb for 5~8 years depending on run time and how well constructed the driver/heatsink of the bulb.
I hear you. But when you multiply that by 3 or 4, it's just kinda hard to justify when you can get a nice led fixture for around the same price (like the Ray 2).
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Old 03-15-2013, 02:23 PM   #22
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If you really want led bulbs you can get 6500K bulbs which sends out 900 lumens for 20$ approx. on eBay or here : http://www.lightinthebox.com/fr/e27-...s_p291306.html

That would cost you like 80$ for 4 bulbs. I would not pay more than 20$ for one of those.

CFL bulbs would be a lot less expensive, 5$ for a 23watts - 6500K bulb, where I live.

They have advantages, you can hang them easily, adjust the height to the water, if one break, you just have to replace one bulb, not all the fixture, etc.

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Last edited by micheljq; 03-15-2013 at 02:25 PM.. Reason: added details
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Old 03-15-2013, 06:49 PM   #23
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If you really want led bulbs you can get 6500K bulbs which sends out 900 lumens for 20$ approx. on eBay or here : http://www.lightinthebox.com/fr/e27-...s_p291306.html

That would cost you like 80$ for 4 bulbs. I would not pay more than 20$ for one of those.

CFL bulbs would be a lot less expensive, 5$ for a 23watts - 6500K bulb, where I live.

They have advantages, you can hang them easily, adjust the height to the water, if one break, you just have to replace one bulb, not all the fixture, etc.

Michel.
I was going to go CFL, but my buddy said those bulbs need to be replaced every 3 months or they start growing algae...

another thing I need to think about is I would have 2-4 bulbs that would need to be on timers.... = extra money compared to 1 cord on ray2 fixture (plus its a cleaner look).
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Old 03-15-2013, 07:09 PM   #24
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I had to change the CFLs after maybe 4-5 months because they were failing, never saw personally any algae increase/correlation because they were old though.

You can put 4 CFLs on same timer, the max wattage the timer can take should be written upon it.

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Old 03-15-2013, 07:34 PM   #25
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I was going to go CFL, but my buddy said those bulbs need to be replaced every 3 months or they start growing algae...
Sounds like your buddy is taking the easy blame route. There is a LOT to algae besides lighting, and what solves algae in one tank might not work for another.

Simply put, light is light, regardless of the source. The plants don't care if you're getting 900 lumens of 6500K light from a twisty bulb, a straight tube, or LED. Algae is caused by an imbalance of Light, CO2, and nutrients.

That said, the CFLs have never been reliable for me in dry environments, such as bedroom lamps and such. I can only imagine what havoc a damp environment like an aquarium hood would do to the driver circuitry (which is the most common failure on the CFL... too much high voltage on cheap components in too close of a space.)

When it comes to lighting fixtures, you often get what you pay for. A solid brand commercially produced LED fixture is going to give you much more joy than a home-brew concoction of lighting devices. You'll also have much better warranty and community support for the fixture.

Your Tank, Your Money, Your Prerogative.
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Old 03-15-2013, 07:39 PM   #26
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Originally Posted by micheljq View Post
I had to change the CFLs after maybe 4-5 months because they were failing, never saw personally any algae increase/correlation because they were old though.

You can put 4 CFLs on same timer, the max wattage the timer can take should be written upon it.

Michel.
What timer are you speaking of? The one on drfosters has 2 outlets for daytime.. what fixture are you using to put the cfls into? - I would most likely use screw in led bulb if i went this route.
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Old 03-15-2013, 08:30 PM   #27
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Originally Posted by Soup12 View Post
What timer are you speaking of? The one on drfosters has 2 outlets for daytime.. what fixture are you using to put the cfls into? - I would most likely use screw in led bulb if i went this route.
Cheap timers at the hardware store, does not matter if there is only one outlet, plug the 4 CFLs on a 4 to 1 plug than the plug in the timer, excuse my english. Make sure, the timer can handle the total wattage of all lamps.

For the CFLs, you can buy cheap table lamps, even just sockets at the hardware store, easy to suspend, you can screw led bulb instead if you want.

Well, of course, it won't be as neat as one Finnex fixture, I agree.

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Last edited by micheljq; 03-15-2013 at 08:35 PM.. Reason: typo
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Old 03-16-2013, 12:57 AM   #28
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any good high par LED screw in flood lights that would work then for 40b growing dwarf baby tears on substrate?
I came across this led bulb recently and posted about it..

For those that might like this type over the common linear form. Though this light is intended for corals it looks like it would be useful for planted tanks too. There are photos to look at.
Radion Pro’s eight color LED cluster brings out incredible coral color rendition

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Old 03-29-2013, 09:05 AM   #29
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Will 2 30watt led flood lights be enough for medium light in 40 breeder and will it spread well?

I plan on having the lights about 16-18" above substrate to grow dwarf grass hair.
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Old 03-29-2013, 09:26 AM   #30
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I am using a couple of screw in led bulbs on my tank and i am liking them alot.
I think you can make them mutch nicer to look at than a flood led lamp, if the lamp is going to be viseble the looks is importent i think.

Here is the lamp i made
http://www.plantedtank.net/forums/sh...946&highlight=

Jnad
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