Light Bulbs for Candelabra Base Linear Light Strands. These Long-lasting (avg. 8,000 hours), waterproof transparent color light bulbs are double-dipped for uniformity and color saturation. Extra thick glass with a nickel base ensures durability and extra filament extends the light bulb's life in outdoor conditions. Sold in multiples of 25 (full boxes) only. You may contact us if you require a special order size.