A nail lamp comprising: a light source support (6030, 7030); and a plurality of light sources disposed on the support, wherein each light source (6050, 7050) is disposed within the support, is configured to produce light to cure a light-curable nail product, and is positioned to direct the light onto a nail when the nail is in a space beneath the support, each light source is a multiple-intensity LED device, said multiple intensity LED device is a circuit that includes a plurality of semiconductor chips on a circuit board, such that at least one of the semiconductor chips has a peak electromagnetic emission intensity at a first wavelength of 365 nm to 425 nm, and at least one other of the semiconductor chips has a peak electromagnetic emission intensity at a second wavelength in a range from about 365 nm to about 425 nm, the second wavelength being different from the first wavelength; and a controller coupled to the light sources, wherein each light source is pulsable between a first intensity and a second intensity, characterized in that the controller controls pulsing of each light sources between the first intensity and the second intensity; the nail lamp further comprises a plurality of source reflectors, wherein each source reflector is arranged on the support around a corresponding one of the light sources, and is structured to direct light from the corresponding light source onto a corresponding nail on an appendage of a user, and each of the source reflectors is a frustum reflector with a small end and a large end, each of the small end and large end having an opening shaped as one of: (i) an oval, (ii) a circle, (iii) a square, (iv) a rectangle, an ellipse, and (vi) a polygon. a light source support (6030, 7030); and a plurality of light sources disposed on the support, wherein each light source (6050, 7050) is disposed within the support, is configured to produce light to cure a light-curable nail product, and is positioned to direct the light onto a nail when the nail is in a space beneath the support, each light source is a multiple-intensity LED device, said multiple intensity LED device is a circuit that includes a plurality of semiconductor chips on a circuit board, such that at least one of the semiconductor chips has a peak electromagnetic emission intensity at a first wavelength of 365 nm to 425 nm, and at least one other of the semiconductor chips has a peak electromagnetic emission intensity at a second wavelength in a range from about 365 nm to about 425 nm, the second wavelength being different from the first wavelength; and each light source (6050, 7050) is disposed within the support, is configured to produce light to cure a light-curable nail product, and is positioned to direct the light onto a nail when the nail is in a space beneath the support, each light source is a multiple-intensity LED device, said multiple intensity LED device is a circuit that includes a plurality of semiconductor chips on a circuit board, such that at least one of the semiconductor chips has a peak electromagnetic emission intensity at a first wavelength of 365 nm to 425 nm, and at least one other of the semiconductor chips has a peak electromagnetic emission intensity at a second wavelength in a range from about 365 nm to about 425 nm, the second wavelength being different from the first wavelength; a controller coupled to the light sources, wherein each light source is pulsable between a first intensity and a second intensity, characterized in that the controller controls pulsing of each light sources between the first intensity and the second intensity; the nail lamp further comprises a plurality of source reflectors, wherein each source reflector is arranged on the support around a corresponding one of the light sources, and is structured to direct light from the corresponding light source onto a corresponding nail on an appendage of a user, and each of the source reflectors is a frustum reflector with a small end and a large end, each of the small end and large end having an opening shaped as one of: (i) an oval, (ii) a circle, (iii) a square, (iv) a rectangle, an ellipse, and (vi) a polygon.