Ambientec XTAL ACRUX LED cordless crystal table lamp with USB charging

Master artisans have hand-cut and polished every surface of the Xtal’s crystal glass shade.‎ It is this superior level of craftsmanship that allows the lamp to produce its signature tapestry of light—an ethereal radial flare—and icy glimmer.‎ Glass shade : Crystal glass LED - 2000K USB Charge: Approx.‎ 3 hours Power:  Rechargeable lithium-ion battery, 3.‎‎7 V / 190 mAh CE, IP66,Class III 3 dimming levels: low, mid, high Battery run time (h):  32 - 16 - 8 Further info from manufacturer on XTAL ACRUX Ambientec