American Lighting S14-LED-WW LED S14 Light Bulbs, Ideal for String Lights, Medium Base, Warm White, (Pack of 25) LED direct replacement bulbs for S14 incandescent lamps Beautiful LED lamps for indoor/outdoor light strings - bulbs last 50,000 hours (12,500 days at 4-hours per day equals 34.2 years) Medium base, warm white 2700K color temp S14 bulb shape, 120-volts, 1.5-watt 25-pack, medium base lamps, use with string light models: #LS-MS-24-48-BK or LS-M-24-48-BK