Bulb Type: C6. Bulb Color: Multicolored. Number of Lights: 5 pk. Indoor and Outdoor. UL Listed. Power Source: Electric. Voltage: 3 volts. Energy Star Compliant. Material Type: Glass., Aluminum Oxide. Features Bulb Type: C6 Product Type: Replacement Bulb Bulb Color: Multicolored Number of Lights: 5 Pack Power Source: Electric Material Type: Glass Indoor and Outdoor: Indoor and Outdoor Voltage: 3 volts UL Listed: Yes Flashing: No Energy Star Compliant: Yes - SKU: ACHR9265. Don't let the lights go out on your Holiday display this Christmas! Replace broken bulbs or prepare yourself for the unexpected with these Celebrations C6 LED lights. Each light bulb is multi-faceted and refracts more light than a smooth bulb. The universal design fits most LED string lights. Use these LED bulb replacement with your Christmas lights. Easy to use, place the replacement bulb in the LED string light holder, and are ready to glow. Each box contains 5 multi-colored replacement bulbs.