Today I received a call from a laser customer, he asked me which model is fit for cooling 1KW semiconductor laser machine. S&A recommend industrial water chiller CW-5300 which is of up to 1800W cooling capacity. It is amazed that he makes payment after getting quotation. Thanks for the trust and support from the customer S&A chillers have passed ISO, CE, RoHS and REACH approvals and the warrenty is 2 years. CW-5300 technical parameter: http://www.teyuchiller.com/Products/ChillerCW53001800Wco.html CONTACT S&A TE:+86-20-89301885 FAX:+86-20-84309967 SKYPE: teyuchiller Email:marketing@teyuchiller.com Website: http://www.teyuchiller.com