Lamp, Waterproof, Integrated LED, LED/18W/T8/4100K/48"/U (PK X 10), 18 Watts, 120 Volts, 1600 Mean Design Lumens, 120 Deg Beam Angle, 4100 K, 70 CRI, T8 Shape, 1 IN Dia, 48 IN Long, T8 Bulb, Medium Bi-Pin (G13) Base, 50000 Avg Life Hrs, 4100 Color, Silicone Coating