magnifying lamp are widely applied in electronic, medical, beauty care, jewellery, have passed GS/CE/UL/ROHS certificate.Lens material: glass Lens size: 5" Diopter: 3 diopter / 5 diopter / 8 diopter Voltage: 110v-120v / 220v-240v Light source: T5 / T9 22w energy savingcircular fluorescent lamp Standard mount: desktop clamp Colour available: as requested by customer