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About product and suppliers:
        Alibaba.com offers 5,421 hps quality products. About 9% of these are led grow lights, 7% are ballasts, and 4% are high pressure sodium lamps. 

A wide variety of hps quality options are available to you, such as plant growth, road. You can also choose from grow lights, street lights, and bulb lights. As well as from high intensity discharge, high pressure sodium. And whether hps quality is free samples, or paid samples. 

There are 5,419 hps quality suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Thailand, and South Africa, which supply 99%, 1%, and 1% of hps quality respectively. 

Hps quality products are most popular in North America, Western Europe, and Southern Europe. 

You can ensure product safety by selecting from certified suppliers, including 2,365 with ISO9001, 389 with Other, and 157 with ISO14001 certification.