Opinions of these LED bulbs please...

[Rumpy Pumpy]

Hi folks, my first post for a while on here. Hope all are well & thriving.


Building a long narrow horizontal for a 55 gal' sumpless tank.

Considering these to light it.

http://www.ebay.co.uk/itm/4x-GU10-60-SMD-LED-5W-SPOT-LIGHT-ALUMINUM-SHELL-BULBS-DAY-WARM-WHITE-75W-/261101894954?pt=UK_Light_Bulbs&var=560158337114&hash=item3ccae2bd2a

Screen will be approx 44 inches long by 5.5 inches wide.


Thanks in advance.

[kotlec]

White LED ?

[Garf]

Hello Rumpy Pumpy - wouldn't a couple of 36 inch tubes with a reflector give a more even spread ?

[Rumpy Pumpy]

White LED ?


"Warmwhite (3200K-3500K)"


Not really "got into" LEDs but that's the sort of spectrum required isn't it?

[Rumpy Pumpy]

Hello Rumpy Pumpy - wouldn't a couple of 36 inch tubes with a reflector give a more even spread ?


That was my plan.

I like the idea of not having to change tubes every 3 months though.

[Garf]

Don't think the tubes have to be replaced every 3 months like cfl's, but can see where your coming from. For max efficiency you should be looking for 660nm red and perhaps 420 - 450nm blue, as these are the peaks in the photosynthetic absorption ratio.

[Rumpy Pumpy]

Don't think the tubes have to be replaced every 3 months like cfl's, but can see where your coming from. For max efficiency you should be looking for 660nm red and perhaps 420 - 450nm blue, as these are the peaks in the photosynthetic absorption ratio.


Ah. Cheers.

Bit technical for me. Not sure I want to be messing about with individual LEDs, heat sinks and what have you.

Maybe I'll go with the tubes after all

[SantaMonica]

Get some plant-grow LEDs.

[Rumpy Pumpy]

Get some plant-grow LEDs.


Tks SM.

Had a look, they're quite expensive at the moment (in the UK anyway), so I'll prob start with the T5s and take it from there.

[dan]

What did you go for in the end?

[djmatteo]

220 square inch screen?