639 prong bulbs products are offered for sale by suppliers on Alibaba.com, of which led bulbs accounts for 1%.
A wide variety of prong bulbs options are available to you, such as 2700k (soft warm white), 3500k (warm white) and 4100 k (neutral white).You can also choose from 3 weeks, 9w and 10w prong bulbs,as well as from white, warm white, and cold white prong bulbs, and whether prong bulbs is e27, b22, or e14.