[Aqua Pro Builder]

Quote: Originally Posted by Bob 1000 I'll take the #4.. Can I use this for night viewing of main tank?? and #3 I'll take.. Looking for some leds for night viewing...

Yes. #4 is much stronger and good for bigger tank.
#3 is about ~1W so light output is like one of 1W night light made by PFO(MarineDepot $49.99)

If you mean spy light(i.e. you see the fish but they don't see you), I can make you some red ones.