3956 20 watt light bulb products are offered for sale by suppliers on Alibaba.com, of which led bulbs accounts for 32%, smart bulbs accounts for 5%, and incandescent bulbs accounts for 2%.
A wide variety of 20 watt light bulb options are available to you, such as ac, dc and rechargeable battery pack.You can also choose from led, halogen bulb and incandescent bulb 20 watt light bulb,as well as from residential, home, and office 20 watt light bulb, and whether 20 watt light bulb is manual button, remote, or sensor.