Equilume Curragh Replacement CupEquilume Curragh Replacement Cup Battery type: Lithium Replaceable Cup Active Hours Per Day: 7 Program: 4pm 11pm Lifespan: 4 Months Waterproof Eye Cup High Efficiency precision blue LED array with light diffuser Blue light is delivered at a specific wavelength automatically each day, no drugs, no hormones, just gentle light therapy The Equilume Curragh Mask allows the replacement of the cup when it expires. Ideal for breeding purposes, simply detach