A lamp includes: a housing; a platform supported by the housing; a left light source disposed on a left side of the lamp; a right light source disposed on a right side of the lamp; a first top light source disposed at least partially above the platform, wherein; the left and right sources extend closer to a front of the lamp than the first top light source; and a space between the platform and the; light sources; to simultaneously receive therein five nails of all five digits of a hand or foot of a user. The positions of the sources and platform may be designed so as to provide substantially uniform light flux to all five nails so as to synchronously and uniformly cure light-curable nail gel or acrylic on the user's nails.