Shenzhen Zhengming Science and Technology co.,ltd is a professional manufacturer of creative tyvek innovation products for 6 years . Our main products are : led book lamp ; R lamp ; tyvek bags ; after 6 years of exploration and unremitting effort ,now we have become a leading company in this field . We have book lamps in stock , also we provide OEM . Our production ability is more than 50000 pcs per month with 4 production lines , welcome to cooperate with us !