Most Halloween yard lights are either battery-powered or corded plug-in models. Common battery packs shown in listings include 3 AAA, 3 AA, or 2 AA cells; other items explicitly note “No Battery Used” and require an outlet.
LED bulbs are the most common. Typical colors offered across decorations include orange, white, purple, and multicolored options.
String lights appear in lengths from about 20 inches up to roughly 10 feet (examples include a 72-inch/6-foot strand). Reported bulb spacing typically ranges from about 2 inches to 8 inches.
Installation methods vary by product and location: suction cups and hanging holes for window or wall lights; ground stakes and fixing ties for lawn props; S‑hooks or U‑stakes for hanging; and plug-in power connections for larger, corded decorations.
Common effects include steady (constant) light, flashing, fading, color-changing, cascading, and fast flash. Mode counts vary widely—from single-mode units up to listings with 22 settings—examples include 1, 2, or 8 modes. Some items also include built-in timers (for example, a 6‑hour on / 18‑hour off cycle).
Some decorations are rated for outdoor or sheltered outdoor use and use weather- and fade-resistant fabrics; a common feature is an IP44‑rated adapter for the power connection. However, specific parts (for example battery compartments) are often not waterproof and should be protected from direct exposure.