10 ft string lights come in tiny LED options (micro or rose-style LEDs), LED neon/strip-style lights, and classic incandescent mini bulbs.
Many 10 ft incandescent mini sets include spare bulbs and spare fuses, a flasher bulb, and a lamp-lock feature to keep bulbs secure and replaceable; they’re often designed so that if one bulb burns out the rest stay lit.
10 ft lights may be battery powered (examples show rose string lights using 3 × AA), or mains powered (listed as AC 110 V or plug-in electric). Some incandescent sets explicitly rely on plug-in power rather than batteries.
Materials depend on style: small LED rose strings commonly use plastic and copper components, neon/rope lights use PVC (with some metal parts noted), and mini incandescent strings use glass bulbs with wire and plastic components.
Neon/rope lights are often cuttable and can be connected to an adapter or additional power for extension, while many incandescent mini sets include end-to-end connectors that let you link multiple sets (listings commonly note the ability to connect several sets together).