Abstract: The invention relates to a pressure driven microfluidic chip for delivering a first liquid at a determined flow rate, said chip comprising a first inlet, a container connected to the first inlet, a second inlet connected to the container via a first passage, a second passage connecting the container to an outlet, wherein the first passage has a first resistance to liquid flow, and the second passage has a second resistance to liquid flow. The first resistance may be higher than the second resistance. The invention also relates to a pressure driven method of delivering a first liquid at a determined flow rate comprising using a chip first a first and second passage, wherein the first passage has a first resistance to the flow of the first liquid, and the second passage has a second resistance to flow of the second liquid.

Abstract: A tanning apparatus for radiation treatment for personal care includes at least one gas discharge UV lamp, at least one ballast connected in series with said at least one gas discharge lamp, and at least one incandescent lamp separate from the gas discharge lamp or lamps. The weight of the inductive ballast is reduced in that the incandescent lamp(s) is included in the ballast or ballasts(s).

Abstract: A tanning apparatus for radiation treatment for personal care includes at least one gas discharge UV lamp (7), at least one ballast (8) connected in series with said at least one gas discharge lamp, and at least one incandescent lamp separate from the gas discharge lamp or lamps. The weight of the inductive ballast is reduced in that the incandescent lamp or lamps (8) is or are included in the ballast or ballasts (8).