Perfect-A-Strip Incandescent Light, Black, 12 1/2" 12 1/2" L x 3 1/4" W x 2 1/2" H A-Strip Incandescent Light in Black - 12" long - Does not include a bulb Features include: injection molded--made of high impact polystyrene, good for fresh or saltwater, fits all brand of tanks, vented for heat dissipation, water resistant rubber boot protects switch from corrosion. Must be used with a glass or acrylic top.