4 Light LED Wonder Lamp You can completely customize your illumination to suit your gems & jewellery assorting needs. There are four different light modes which can be adjusted to five different brightness levels: Diamond, Jewellery, Jadelite & Gemstone mode. Each mode is calibrated to provide optimum lighting for each respective activity while reducing eye strain and fatigue. With 180 swivel, height, and angle adjustment, you can shed light exactly where you need it. A memory function recalls the last mode and brightness level you selected before it was turned off for maximum convenience.