The Wolff System Velocity Plus Lamps (Bulb)are professional sun tanning lamps which proportionately increases the amounts of UVA emitted, to help darken the pigment granules more quickly without increasing the risks of erythema (redness/sunburn)in the skin. This increases vitality, pigment formation and oxidation of the melanin. Approximately 10% stronger than the Velocity® lamp. A compatible lamp which provides an even darker, richer tan. May be used as an upgrade. Significantly more UVB without compromising the robust UVA that Velocity® is known for. Benefit: Our most powerful lamp with extra power takes you a big step further. Increased compatibility. Allows a salon owner to replace Genesis Lamps with a lamp under the Wolff® Label. 100 watt lamps are rated at 1,000 hours. More profit realized due to less change out and less lamps purchased.