The Microsun Monticello lamp, shown here with its shade cut away, uses three bulbs. Though it's now discontinued, the Monticello uses the same technology as current Microsun models. The Monticello is a large wooden lamp with a cloth shade.
Metal halide is a specialized type of bulb often used in commercial applications.
So far, so good on the claims. However, lab tests also showed that the metal-halide bulb needed a full minute to reach its maximum output, not the claimed 30 seconds. You'd then recover the cost of the lamp in about five years. If you used the Microsun less, the payback period would be longer.