Vickerman - LED Light String Set - Battery Powered - Miniature Warm White Green Wire with Timer - 50 Light Strand WARM WHITE LED - 50 bulb wide angle LED light set creates a soft and welcoming glow. 24 gauge green wire with 12" lead and 5" spacing. 20' overall length. MULTI-FUNCTION BATTERY BOX - Includes timer with options of 4, 6, or 8 hours on. Also manual mode to control always on/always off, and dusk-to-dawn modes. MULTIPLE LIGHTING MODES - Four modes: steady on remains lit, blinking gives a twinkle effect, flashing (fast) and flashing (slow) for a strobe effect. BATTERY OPERATED - Requires 2 C batteries (not included). Using 4hrs on; 20hrs off timer - good quality battery life is expected to last for up to 20days. INDOOR USE ONLY - Not recommended outdoors. Ideal for lighting and decorating inside where electricity is not available. Great for Christmas tree illumination.