ebay UV bulb replacement?

[Arowana718]

I have a coralife UV 6x (18W). The replacement bulbs are expensive IMO. I bought replacement bulbs from ebay for under 10 bucks for two.. I been using it for past yr. Seems fine, but unsure if its really effective or not?

Any one else bought them and using them? Share your thoughts and opinions. Thanks

 

[administrator]

I bought my replacement UV bulb from ebay without any issues. Only used the unit for 6 months before I put it away.