4.32 Watt, 6.0 Volt, Single Ended, Screw Base, TL-1.5 Bulb Shape, 75 Hours Rated Average Life, 3050K Color Temperature, Clear Lamp, 1.10236 in (28 mm) Max Overall Length, .315 in (8 mm) Bulb Diameter, RoHS Compliant. Other part numbers, 1340, BO07800, CA1340, CL1340, WA-78, WA-07800-U, WA-07800, 6783-07800U