The Pryzma has 44 – 160 watt bulbs with 3.6% UVB on the body so you get the richest, darkest, most gentle tan without the burn. The face tanners are extremely gentle with only 1% UVB on the face. The Pryzma is a good choice if you are just starting or need a tan in a short period of time or just want the best rays for your skin.