C9 bulbs are large, bright bulbs used in roofline installations.

LED lights are energy-efficient bulbs that last longer and use less power than incandescent lights.

Zip line cord is 18/2 gauge wire used for custom-cut extension cords in Christmas light setups.

Voltage drop occurs when power decreases over long strands, causing dimming of the lights.

GFCI outlets protect from electrical shock by cutting power when an imbalance in current is detected.

Tuff clips are used to securely fasten lights to shingles or gutters without damaging the surface.

Magnetic clips are used to attach lights securely to metal roofs without causing any damage.

Halo clips snap around the bulbs and allow for quick attachment to shingles or gutters.

Inline connectors are used to join custom-cut light strands and repair breaks in wiring.