This Haraqi Himalayan salt rock lamp is hand carved natural crystal salt with a wooden base and includes a dimmer switch and UL-approved bulb. This lamp is gorgeous on and the dimmable switch provides many different levels of brightness. My salt lamp is roughly 4" X 4" X 8" in measurements. The cord is an excellant length and the dimmer on/off switch is positioned well within reach of the salt lamp itself. I am very pleased with my purchase and am looking forward to having it for many years! Love, love love!!!