ATT SOLR-10 HGV Beamtester | Liftmaster / HGV Headlamp beamsetter / By admin ATT SOLR-10 as supplied to DVSA ATF test stations. Manufactured in Germany by ATT / Nussbaum. DVSA Approved Class 3,4,5,7,PSV and HGV. Installed with level & calibration certification.