C7 warm white LEDs use a C7-shaped bulb mounted on a candelabra (E12) screw base.
Reported values vary by listing. Per-bulb figures are commonly around 0.5 W, though one listing shows an "Energy used (watts): 1" value. Strand-level examples in the listings include 2.4 W and 7.2 W, and one listing gives a 30 W incandescent equivalent. Check the specific product listing or label for the exact wattage and equivalence for the set you’re buying.
Typical bulb spacing in the listings is either 5 inches or 8 inches. Lighted lengths vary by set and bulb count, with examples ranging from about 16 feet up to roughly 66 feet depending on the model.
Available wire colors in the listings include green, brown and white.
Many strings include built‑in clips or clamps at each bulb base for easy attachment to rooflines, trees, fences or railings; some listings also mention a lamp‑lock feature to help keep bulbs securely in place.
Common features noted are UL listing/certification for indoor/outdoor use, non‑glass (polystyrene) bulb construction, bulbs that remain cool to the touch, replaceable bulbs, and spare fuses included with the set.
Most listings include replacement bulbs and spare fuses. Many strings are designed so a single burned‑out bulb won’t darken the entire strand, allowing the rest to stay lit while you replace the bulb or fuse—check the product details for the exact replacement procedure.
