led vs pc?

Will do

 

If it's not designed for reef aquariums than it more than likely does not have the proper spectrum needed by your SPS.

 

it says on the decription it is Dimmable PAR38 W+B LED Aquarium Reef Corals Grow Light | eBay

 

I will never understand why people want to buy cheap, no-name brand lighting products off of ebay.

Why not get a proven name brand product, that is high quality, and will last for years, with customer service and a warranty?

 

I agree, but in this case, the OP is 15 years old.

If you have the opportunity, save up and but a rapidLED par38 or evil's par38 from nanotuners.

No two brands of LED spotlights are truly equivalent and there are quite a few factors you need to take into account.

Diode brand, driver brand, quality of heat sink, and most definitely the optics attached to the diodes. 40,60, and 80 degree optics produce vastly different par numbers at various heights.

I'm betting your bulbs spectrum is just fine for photosynthesis.

Check out this article, it's a interesting but kind of technical read
http://reefkeeping.com/issues/2006-03/sj/index.php

 

I missed that part. My apologies to the OP. Get whatever you can afford, and worry about the nice stuff when you're a little older.

 

Thanks I might be getting to boost par 30s for christmas and a auto top off system