
Superior in design and in performance, the B1-252LED model incorporates a wide range of features designed for University and Laboratory use. Superb optical clarity and reliable mechanical engineering assures years of top performance. Downloads Catalog Product Manual Videos * { box-sizing: border-box; } /* Create two equal columns that floats next to each other */ .column { float: left; width: 50%; padding: 10px; } /* Clear floats after the columns */ .row:after { content: ""; display: table; clear: both; } How to adjust the tension of the focusing system (ring). E