![Why an electric bulb needs to be vacuumed? Can we light up a bulb in the space without enclosing in the glass bulb? Why an electric bulb needs to be vacuumed? Can we light up a bulb in the space without enclosing in the glass bulb?](https://www.physlink.com/education/askexperts/Images/ae405b.jpg)
Why an electric bulb needs to be vacuumed? Can we light up a bulb in the space without enclosing in the glass bulb?
![95*135mm 3D Magic Decorative Filament LED Light Bulbs with Glass Material - China 3D Bulb and LED Firework price | Made-in-China.com 95*135mm 3D Magic Decorative Filament LED Light Bulbs with Glass Material - China 3D Bulb and LED Firework price | Made-in-China.com](https://image.made-in-china.com/2f0j00RAdWYnfhCpqg/95-135mm-3D-Magic-Decorative-Filament-LED-Light-Bulbs-with-Glass-Material.webp)
95*135mm 3D Magic Decorative Filament LED Light Bulbs with Glass Material - China 3D Bulb and LED Firework price | Made-in-China.com
![How light bulb is made - material, manufacture, history, used, parts, components, structure, industry, machine How light bulb is made - material, manufacture, history, used, parts, components, structure, industry, machine](http://www.madehow.com/images/hpm_0000_0001_0_img0116.jpg)
How light bulb is made - material, manufacture, history, used, parts, components, structure, industry, machine
![Lxcom Lighting C35 LED Candelabra Light Bulb 4W Dimmable Filament LED 40W Equivalent Light Bulb E12 Base LED Candle Bulbs C35 Frosted Glass Flame Shape Bent Tip Soft White 2700K,8 Pack - Lxcom Lighting C35 LED Candelabra Light Bulb 4W Dimmable Filament LED 40W Equivalent Light Bulb E12 Base LED Candle Bulbs C35 Frosted Glass Flame Shape Bent Tip Soft White 2700K,8 Pack -](https://m.media-amazon.com/images/I/61RkoBY+nnL.jpg)
Lxcom Lighting C35 LED Candelabra Light Bulb 4W Dimmable Filament LED 40W Equivalent Light Bulb E12 Base LED Candle Bulbs C35 Frosted Glass Flame Shape Bent Tip Soft White 2700K,8 Pack -
![Antique Light Bulb Stock Photo - Download Image Now - Black Background, Glass - Material, Light Bulb Filament - iStock Antique Light Bulb Stock Photo - Download Image Now - Black Background, Glass - Material, Light Bulb Filament - iStock](https://media.istockphoto.com/id/179213637/photo/antique-light-bulb.jpg?s=612x612&w=is&k=20&c=ivCJPIAuon9t3_c1uLljzOOchwEpjyRRd8o58gafR38=)