Robus
Robus SONIC4 90 Degree Lens Accessory For 150W High Bay Robus RSNL90-M
£24.26
https://www.bltdirect.com/ Go to shop Description
From Robus comes this 90 degree polycarbonate lens accessory for use in conjunction with 150W SONIC4 High Bay fittings. The lens creates a tighter beam for better light control in specific applications and is tremendously easy to install