10 Pack ~ C9 ~ Red / Ceramic ~ Christmas Holiday ~ Replacement ~ E17 ~ 7 Watt ~ Light Bulbs 7 Watt Incandescent C9 Replacement Red / Ceramic Christmas Holiday Light Bulbs Incandescent Bulbs Provide Bright, Brilliant Light Compared to LED Christmas Lights Brass E17 Intermediate Bases Will Not Corrode 3000 Hour (Average) Life Span