Lighting for clam
- Thread starter duds
- Start date
I've done the research way before that thread was started. your being duped by the lighting manufactures. T5's and PC's are the same technology, except one has all the plugs on one end and the other has them on both ends. the big difference is the reflectors. yes a T5 can deliver more light with a GOOD parabolic reflector, take away the reflector and its a PC.
Why would you ever use a T- 5 without a reflector?? i dont know ?and i dont think i ever asked you why either? why would you compare a bulb test that uses a T5 bulb with a parabolic reflector to any other bulb with out?
when did i say they are poor? i said they are the same thing as PC's .
just a second ago i had someone post and said that i must not have read the thread. now i guess i can say that to you
read my post and prove me wrong. im not here to argue..
Good luck
when did i say they are poor? i said they are the same thing as PC's .
just a second ago i had someone post and said that i must not have read the thread. now i guess i can say that to you
read my post and prove me wrong. im not here to argue..
Good luck
delv
In Memoriam
Parabolic reflectors don't work as well on larger diameter bulbs because of bulb restrike.
As far as the PC comparison, seems fair...except for the difference in longevity (PC's were/are known for very short life) and the difficulty in finding a decent reflector (bulb restrike is even worse with parallel bulbs like PC's). My reading comprehension aside, I think that makes for a very poor comparison...ie, they are quite different.
Anyway, T5's would work great on a small tank....I'd get a retro fit in a custom hood...build with some extra room for additional bulbs and add them if you find it necessary...with their small size you can pack quite a few over a tank...remember ventilation, they get hot...that can effect longevity.
enjoy,
d.
As far as the PC comparison, seems fair...except for the difference in longevity (PC's were/are known for very short life) and the difficulty in finding a decent reflector (bulb restrike is even worse with parallel bulbs like PC's). My reading comprehension aside, I think that makes for a very poor comparison...ie, they are quite different.
Anyway, T5's would work great on a small tank....I'd get a retro fit in a custom hood...build with some extra room for additional bulbs and add them if you find it necessary...with their small size you can pack quite a few over a tank...remember ventilation, they get hot...that can effect longevity.
enjoy,
d.
:lol: 
your still not comparing the BULB to the BULB,forget the reflector. PC's and T5's are the same thing execpt,PC's are Half the length of T5's(for the same watts)but rember PC's have 2 tubes. T5's have connector's on both ends and are twice the length,same diameter bulb. your being duped!
ad a nice parabolic reflector to a VHO then compare the #'s.
your still not comparing the BULB to the BULB,forget the reflector. PC's and T5's are the same thing execpt,PC's are Half the length of T5's(for the same watts)but rember PC's have 2 tubes. T5's have connector's on both ends and are twice the length,same diameter bulb. your being duped!ad a nice parabolic reflector to a VHO then compare the #'s.
well, MY experience is that I have a derasa under 2 48" T-5s, and it, and everything else in my tank is doiing much better after i turned off the second set of t5's... I was burning everything in the tank. it is a 60 gallon, and the derasa is on the sand. I had pcs, and then t5s, they are not just glorified pcs. btw, I have a tek-light fixture, running one actinic and one daylight, I have reasonably good shimmer lines. not mh, but not pc. I cannot have Mh because my apartment is not air conditioned, and I can keep the tank at an acceptable temp, with a fan, even with the temps in the apartment at 85-90 deg.......
Confooseld
New member
You're right I didn't do the thread but I'm pretty sure they DID do bulb to bulb when I read through that thread but honestly why am I even debating with someone so arrogant.
If you get a t5 with the parabolic reflector and a standard VHO with built in reflector they put out the same light but the VHO bulbs are cheaper. I think?
I donââ"šÂ¬Ã¢"žÂ¢t know, I was wondering about this, because at one time I was tempted to change over to t5s then didnââ"šÂ¬Ã¢"žÂ¢t because I wasnââ"šÂ¬Ã¢"žÂ¢t sure.
I donââ"šÂ¬Ã¢"žÂ¢t know, I was wondering about this, because at one time I was tempted to change over to t5s then didnââ"šÂ¬Ã¢"žÂ¢t because I wasnââ"šÂ¬Ã¢"žÂ¢t sure.
delv
In Memoriam
I've yet to see a decent parabolic reflector for VHO bulbs...nevermind the internal reflectors...true reflectors are important in the bulb application (perhaps as important as the bulb....?)...unless you just like to sit around on the internet and argue abstract flourescent bulb numbers/values. I however, have beers to drink.
enjoy!
d.
enjoy!
d.
mmbuna, not trying to sound mean but you are an arrogant person if you can't even spend 2 mintues to look at the NEW and NON-fraudulant t-5 threads. Not only has the comparision been tested multiple times but also by many member here. If you think this is conspiracy then you are wrong. Search for a member named "your wrasse is mine" (something like that) and look at some of his comparisons. He has a vast knowledge of Mh, pc, vho, and t-5 but he has owned them all and has also done the tests himself.
Frankly i think you are just ****ed because your so called "glorified pc's" are not only an alternative to mh and vho and pc but they are also pretty cheap comparitively speaking while still doing a great job. Remeber wpg doesnt mean crap now and neither does the legend that metal halides produce the most par or that vho is the only thing that produces popping colors.
Frankly i think you are just ****ed because your so called "glorified pc's" are not only an alternative to mh and vho and pc but they are also pretty cheap comparitively speaking while still doing a great job. Remeber wpg doesnt mean crap now and neither does the legend that metal halides produce the most par or that vho is the only thing that produces popping colors.
<a href=showthread.php?s=&postid=6353575#post6353575 target=_blank>Originally posted</a> by mbbuna
:lol:
ad a nice parabolic reflector to a VHO then compare the #'s.
another thing reguarding this post. that statement is flawed. geometry plays a large part in effectiveness of a bulb and the light it produces and the intensity it puts in the tank. The way vho and pc are made i am under the impression that a parabolic reflector (one that is on the standards of the t-5 ones are atleast) is not possible to make for them. Those "little differences" between those two bulbs change a LOT about the intensity and light. I have one question for you: if you put the t-5 in a reflector and then put a pc in the same one (pretend it fits) ,would the t-5 not reflect like more effectively because the pc has two tubes which doesnt allow the majority of the light to travel into the tank ? That alone is a huge difference.
So:strange: I'm arrogant? this is too funny
all the tests you all are talking about test T5's with very nice parabolic reflectors compared to other fluorescence with out these nice reflectors.
Ive done plenty of research on lighting,so please present info or data instead of asking me to go search for it. i would really like to see it
if you like your lighting then great.
if you don't like what i have to say about lighting then great also
all the tests you all are talking about test T5's with very nice parabolic reflectors compared to other fluorescence with out these nice reflectors. Ive done plenty of research on lighting,so please present info or data instead of asking me to go search for it. i would really like to see it
if you like your lighting then great.
if you don't like what i have to say about lighting then great also
I don't really understand why you think the tests are one sided because of the reflector. Why is the t-5 not allowed to use what is made for it? If the other types of lighting had a parabolic reflector then you would use it wouldn't you? I ask this cause I think the reason t-5 are better is because of the fact that the bulb was designed so that a parabolic reflector could be used in conjunction with it. There are reasons bulbs are made in the shapes they are. Do you not agree with that?<a href=showthread.php?s=&postid=6357637#post6357637 target=_blank>Originally posted</a> by mbbuna
So:strange: I'm arrogant? this is too funny
Ive done plenty of research on lighting,so please present info or data instead of asking me to go search for it. i would really like to see it
if you like your lighting then great.
if you don't like what i have to say about lighting then great also
because i was talking about a bulb to bulb comparaison. i am looking at the bulbs themselves. to be fair in in a lighting comparaison you ether test the bulb by itself to another bulb by itself or with the same reflectors on both. this whole thing was about the BULBS. the decision wasn't about REFLECTORS
roader247
New member
Have any of you seen this one ALL T5'shttp://www.reefcentral.com/forums/showthread.php?s=&threadid=700454&highlight=iwan
cherubfish pair
New member
t5's are called HO (high output), whereas VHO are Very High Output (light).
VHO's have special ballasts that are designed to save energy and bulb life.
VHO's have special ballasts that are designed to save energy and bulb life.
