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Okay to Change?

Krishs Bettas

Member
Joined
10 May 2009
Messages
422
Hi Everyone,

Just a quick question my old light tubes are starting to get dim now (9 Months old) would changing them cause a aglae spike becuase of the brighter light? If so how would be the best way to prepair for it?

Thanks for your help,
Krish
 

howanic

Member
Joined
28 Jul 2008
Messages
149
Location
London
I am surprised that they are dim after only 9 months. Mine are over 2 years old and are as bright as ever. What brand are they?
 

howanic

Member
Joined
28 Jul 2008
Messages
149
Location
London
Oh that answers that then. Mine are t5s. Can't believe t8s only last 6 months. That must get expensive. :thumbdown:
 

Krishs Bettas

Member
Thread starter
Joined
10 May 2009
Messages
422
I have T5s however i brought the light unit second hand from a member if the forum which came the tubes so who knows how old they can be... So i just may as well replace them soon.
 

foxfish

Member
Joined
11 Oct 2009
Messages
5,037
Location
Guernsey
I think it is more about the ballast that operate T8s, the magnetic ones cause the lights to deteriorate much quicker than electronics ballast?
I think all T5s have electronic starter units & the light drop off is not much over at least 20000 hours (3 years)
I also think that modern T8s with electronic starter can last almost the same amount of time?
However I did read somewhere the colour rendition changes more with T8s?
My locale electrical store sells 38w T5 bulbs from less than £2.50 so I still change mine (two bulbs) every year.
 
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