High intensity C9 Cool White Steady OptiCore LED bulbs with Nickel base. Connect more - low watt LED Christmas lights.

C9 Cool White OptiCore LED Christmas Light Bulbs

C9 Multicolor Smooth OptiCore LED Christmas Light Bulbs

C9 Cool White OptiCore LED Christmas Light Bulbs

C9 Cool White Smooth OptiCore LED Christmas Light Bulbs

C9 Unbreakable Christmas Light Replacement Bulbs, OptiCore Vintage

25 Pack OptiCore LED C9 Cool White Christmas Light Bulbs - 0.84W Premium Shatterproof C9 LED Christmas Replacement Bulbs, E17 Bulbs/Base (Cool White Faceted)

OptiCore® LED Bulbs - Wintergreen Corporation

Wintergreen Lighting OptiCore C9 LED Multi-Color Faceted Christmas

Christmas Pathway Lights - C7 Cool White / Red Opticore Christmas