Secondly, CE is for electromagnetic compatibility and safety testing, while GS is mainly for product safety requirements.
Then there is the cost of certification and the cycle. CE general certification bodies can issue certificates, the cost of a few thousand to ten thousand or so. Only need to provide samples and related information to the certification body on the line. The cycle is generally no more than ten working days, do not need to audit the plant. GS fees by the test fee, auditing fees, certificate annual fee, etc., if it is an agency will be more an agency fee. This involves a factory audit, at least 6-8 weeks. It may take a little longer.
Hope to help you.