Sunlonge is the leading manufacturer and supplier of industrial surface inspection lamps and special demand inspection lamps. We have been in this field for more than 15 years. We master the full set of HID and multiple optical lens technology. With 3-4 sets, even 5-6 set of optical lens in front of each LED, through the multiple conversion of the optical lens, we can make inspection lamps with special light source according to customer demand. Our advantage is customization, non-standard production. Now our lamps have been exported to more than 30 countries and districts.