Hello,everyone.i am ivy from Heartinled Technology(shenzhen)Co.,Ltd in shenzhen,China.We produce LED display screens and lamps with high quality & very competitive price for 10 years in China,hope to be one of your supplier. We provide free sample blow 32*s,The guarantee time is 3 years, and we are free charge of changing the parts which is not damaged by people within this period.We provide high quality goods with excellent after-sales service.If you are interested in our products,please do not hesitate contact me any time.Skype:yuyejun890912 ivy AT heartinled.com Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.