54189 Features: -Bulb.-Low to medium voltage with reflector.-Filament: C-8.-Average rated life: 50. Color/Finish: -Clear finish.-Color rendering index: 100. Specifications: -12 Volts.-Accommodates 100W MR16 GZ6.35 Bi-Pin halogen bulb. Dimensions: -Overall dimensions: 1.653'' H x 2.008'' W x 2.008'' D.