What is the difference btw T5 and T4 lights?

Hope someone can enlighten me. Thanks.

T4 tubes is thinner than T5 tubes, and the thinner the tubes, the brighter the lights would be. But nowadays T5 is more popular than T4, and there are all kinds of stuff like high output T5s etc...., but I'm not sure whether there is any in T4. Go for HO T5, its good enough for a reef tank.

i believe T4 is for fresh water plant tanks right? not sure a LFS owner told me once. anyway go for T5.. T4 will only allow u simple corals.

oh by the way,the price tells it all :P

Just bought 1 1.5 ft T4 light at $5.90. Is it consider cheap?

Originally Posted by mansiz

T4 tubes is thinner than T5 tubes, and the thinner the tubes, the brighter the lights would be. But nowadays T5 is more popular than T4, and there are all kinds of stuff like high output T5s etc...., but I'm not sure whether there is any in T4. Go for HO T5, its good enough for a reef tank.

guess so, T5 cost around $100 with 2tube for 2ft

Thanks for your info.

T5 tubes cost about $18 - $24

Hope this helps.

T4 tubes dont really have a much selection of kelvin rating for marine.

Ming

I bought a T4 tube for 1.5 ft light at $1.90.

i din noe t4 so cheap laioz..
t4 is jus like any other pl type lites rite?