SG Tool Aid Replacement Bulb for Circuit Tester

SG Tool Aid replacement bulbs for circuit testers (also called test light bulbs) restore the light in your existing tester when the original bulb has burned out or dimmed. SG Tool Aid offers a replacement bulb for each of its circuit tester models. Fitting the right one is a quick, low-cost repair, so you don't have to buy a whole new tester.

Key Features:

• Direct-replacement bulbs made for SG Tool Aid circuit testers and test lights
• Brings back bright, consistent illumination so you can see live circuits, grounds, and faults clearly
• Helps keep your tester working for 6-volt and 12-volt automotive electrical diagnostics
• Quick to swap, which keeps downtime short
• Lets you keep using the tester you already own

Pick the bulb that matches your SG Tool Aid tester model. A fresh bulb keeps your circuit tester reliable for automotive, powersports, and general electrical troubleshooting.