• Incandescent bulb brightness adjusts proportionately to the circuit voltage and amperage: the higher the circuit voltage or amperage, the brighter the light
• Simulate a small load for circuit testing for lights, switches, motor circuits, fans, etc.
• 1' black and 4' red vinyl-jacket test lead set with superior flex wire to glide past components and remain flexible in cold conditions
• Screw-on alligator clips and metal probe covers to protect tip from crossing circuits during testing for safety