Road Power 16-foot 6 Gauge Booster Cable with Night Bright LED Lighted Clamp Jumper Cable features built-in LEDs to provide light for easy jump starting. Just squeeze the clamps and light will illuminate, making this perfect for night time use. The 16-foot jumper cables are made with copper-plated aluminum cable and wrapped with tangle-free PVC insulation keeping them flexible down to -40 degree weather. The Night Bright Clamps are also color-coded for easy porlarity identification. Ratings: 250 Amp Cable, 400 Amp Clamp. Includes (8) LR626 batteries, (2) per LED.