<p><strong>Lens material : </strong>glass</p>
<p><strong><br />
Lens size : </strong>5 &quot;</p>
<p><strong><br />
Diopter : </strong>3 diopter /5 diopter/8 diopter</p>
<p><br />
<strong>Voltage : </strong>220V-240V 50Hz 22w</p>
<p><br />
<strong>Light source : </strong>22W fluorescent lamp&nbsp;</p>
<p><br />
<strong>Standard mount : </strong>desktop clamp</p>
<p><br />
<strong>Colour : </strong>white</p>
<p>&nbsp;</p>
<p><strong><br />
Made in china / No brand</strong></p>