head rush when standing up

{"cid":"91189958","title":"HNS205 Microwave Motion Sensor Module Dimming Control 1w 5 Years Warranty","imgUrl":"https:\/\/img.chinax.com\/nimg\/a2\/cc\/4137e6505e6f096c589f72df3b6d-200x200-1.jpg","attrs":{"Price":"To be negotiated","Brand Name":"Hynall","Model Number":"HNS205","Minimum Order Quantity":"300pcs","Delivery Time":"3~4 weeks for bulk orders","Certification":"RED, FCC, RoHS, ETL","Place of Origin":"Shenzhen, China","Payment Terms":"T\/T","Supply Ability":"20,000pcs \/ month","Packaging Details":"Bubble bag + carton. (color box or blister package also available on request)","Input voltage":"120~277V AC","Type":"microwave motion sensor","Usage":"ceiling light, linear light, LED panel etc.","Product name":"HNS205","Warranty":"5 years","Size":"102*45*26.5mm"}}