hi, for ur inform, me currently use resun chiller, n if u goin to buy it juz make sure the LFS took the chillers from Singapore company TUNG-HU AQUARIUM and NOT import the chiller from elsewhere cos Tung-Hu will bear the responsibilty if u got a faulty or it get spoilt within the warranty period. i hv this experience when i bought a faulty chiller n i email the problems to tung-hu n they really reply to me fast.