How To Blow A Hole In A Light Bulb

A light bulb is an everyday object that you don’t really think twice about. It is made of a glass container with a tungsten wire to produce heat and light. Bulbs range from 60W -120W in your regular households. 

These days, conventional bulbs are not in fashion and more energy-efficient versions have taken over. Even after the shelf life ends for a regular bulb, it can be modified for other uses. 

From using it as a plant tub to doing experiments, or even painting it for aesthetics, a conventional bulb has a few unique uses that you might not have known and are willing to try out. 

If you are looking to do something similar, you will first need to learn how to blow a hole in a light bulb! The process is very simple, and this article will help you guide through it.

How to Blow a Hole in A Light Bulb

The light bulb has a glass exterior with a filament inside which is also cased in a glass compartment. The entire structure is sealed airtight through the bottom of the bulb which has a metal ring or base. 

The air pressure difference between the interior and the outside is essential because the heat produced by the light will otherwise cause the exterior to expand and crack.

 As usual, glass can be a dangerous object to work with. Also, the bulb itself is very fragile as well. Before we begin to talk about how to blow a hole in a light bulb, we have to have a few necessary pieces of equipment.

There are two main ways you can blow a hole in a light bulb. We will explore both processes here.

Using a Blowtorch


This is the simpler of the two processes. You are more likely to have a blowtorch in your inventory.

Lay the bulb on a flat surface and wear your safety equipment. The light bulb will be heated after you apply the torch so make sure you do not burn yourself. Start by applying heat to the bulbous or bulge of the bulb. It is important to remain precise so that the heat does not spread over a larger surface area.

Blow Torch

Soon enough, the heat will begin to melt away the glass and you will hear some popping sound. The air pressure will slowly stabilize provided the bulb does not shatter because of a larger surface hole.

This is one way how to blow a hole in a light bulb.

Using a Drill

Using a drill to blow a hole in a light bulb might feel like overkill. But a diamond-tipped drill is very efficient in cutting glass and the drill will help create a nice incision in your bulb. For this, you will need some extra equipment, hence the blowtorch is the easier of the two options.

You Will Need

Step 1: Immersing the Bulb

Place the bulb inside your bucket of water and use any material or clamps to hold it in place. This is important because, if the bulbs move around you will not be able to drill a precise enough hole.

Step 2: Setting up The Drill

The drill needs to go at a steady pace to not apply excess pressure. A range from 80-110 RPM is steady enough to not shatter the glass and precise enough for a clean incision.

Make sure the bulb remains submerged during the drilling. The vacuum inside the glass will shatter it if you drill it in the open. Hence, the bucket of water acts as a counter to that pressure.

Setting Up The Drill

In these two methods, you have learned how to drill a hole in a light bulb. You can also learn to hollow out a light bulb if you do not have the equipment in this guide. In that case, you must remove the metal bottom and carefully clear out the filaments. There won’t be a hole, but the bulb is still usable in other forms too.

Frequently Asked Question

Can You Drill a Hole Into a Light Bulb?

Yes, it is possible to drill a hole into a light bulb. You will need certain equipment for it. A drill is quite expensive for regular households and you seldom use it outside of a few niche cases such as using it to drill a hole into a light bulb. 

But, provided you have the necessary tools, it is possible to learn how to blow a hole in a light bulb using a drill.

Can You Blow up A Light Bulb?

One of the two main methods of creating a hole in a bulb is using a blowtorch. A butane torch Is useful because the heat from the torch will melt the glass and create a uniform hole that repressurizes itself. 

It is more viable than using a drill as you might have a blowtorch around your house rather than a diamond-tipped drill.

How Can You Make a Hole in The Glass without Cracking It?

It is difficult to wrap your head around it. How to blow a hole in a light bulb? That too, without cracking it. The answer is quite simple really. You have to submerge it in a bucket of water. 

This water acts as a counter to the vacuum inside the bulb. Therefore, the bulb will not crack as easily.

Read also: Can You Cut LED Light Strips?


There are many different uses for a bulb that is past its shelf life. The long service a bulb provides does not necessarily end after the filament shatters. A hollowed-out or holed bulb can be used for quite a few passion projects starting from painting up to housing a mini plant. 

You may even prefer wrapping it up in LED to provide more aesthetic views in your house. All in all, it may be useful to learn how to blow a hole in a light bulb. The work isn’t tedious and dissecting a bulb sounds fun either way!

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