Three types of USB-powered lamps are available (not all are in stock at all times, however):
* Two with the regular pink or slightly orangeish coloured Himalayan crystal salt, as shown on the left below:
- one distributed by the T-Zone company illuminated by a steady white light like the one pictured on the left of both photos, which makes the lamp glow orange; and,
- a slightly larger one (ranging between 700 grams and 1.5 kg in weight, and standing about half an inch higher than the T-Zone ones) distributed by Sundhed, whose LED light continually alternates between white, yellow, green, blue, violet and red colours every few seconds, in a very fluid, soothing way, causing most of the lamp to take on those hues, as well.
* One from T-Zone featuring nearly pure white crystal salt, with an alternating LED light which glows from purple to blue to green, fading from one colour and transitioning to the next every five seconds or so (shown right).
The two T-Zone lamps are under 4 inches in diameter and stand about 5 inches high, while the alternating Sundhed lamp is up to 4.5 inches in diameter and up to about 5.5 inches high.