ProsKit 9W Led Table Clamp Magnifier Lamp MA-1209LIThe glass lens will provide the high transmittance and not easy to scrape. 56 LEDs energy saving , low temperature and long life. Standard mount: Desktop clamp Power supplied with electronic rectifier provides even more stable performance Adjustable arm for easy positioning where it is most needed. Clamps easily and securely onto most flat surfaces up to 65mm thick.