Test Light Email Automotive 6 and 12 Volt Test Light for Testing 12 Volt Circuits Part #: T-M990200 Part #: T-M990200 Quantity Price ea. 1 + $8.35 8.35 Back to: Shop home Ask a question about this product Deluxe Circuit Tester 6-24V w/Insulated Clamp 1 Pc Steel Battery Brush Description Test Light - 6 and 12 volt test light for analyzing battery and alternator voltage. Long lasting steel probe. Amber handle for reduced glare. Large aligator clip for grounding.