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Light bulbs

Whether you want to create the perfect atmosphere to relax and unwind or need the correct lightbulb brightness to read and work, you're spoilt for choice when it comes to our light bulb collection here at B&Q. We have the latest LED bulbs, such as energy saving bulbs, along with traditional incandescent bulbs, and our extensive range of cap fittings. Whether replacing halogen bulbs in halogen lighting or creating a statement feature in your living room with traditional light bulbs, B&Q has the right bulb for any room or fitting. Shop both bathroom light bulbs and kitchen light bulbs, as well as options for every room in the house.

Showing 27 of 4,142 products

Light bulbs come in a variety of shapes, sizes, and technologies to suit different lighting needs. Whether you need a standard E27 bulb or a smaller E14 bulb, finding the right fit for your light fitting is essential. For energy efficiency and long-lasting performance, G9 LED bulbs and fluorescent tubes offer great alternatives to traditional options. If you’re looking for directional lighting, a GU10 bulb or MR16 bulb is ideal for spotlight bulbs and recessed fittings. For those using bayonet fittings, a B22 bulb or small bayonet bulb provides reliable illumination. Many lighting setups benefit from dimmable light bulbs, allowing you to adjust brightness levels for different moods.

If you're upgrading to smart lighting, E14 smart bulbs and GU10 smart bulbs provide wireless control and customisable settings. Philips Hue bulbs and CALEX bulbs also offer smart lighting options that are perfect for modern homes. Specialist bulbs include the G4 bulb for low-voltage lighting, an oven bulb for high-temperature environments, and a 4 pin light bulb for compact fluorescent fittings. For floodlights and security lighting, an R7s bulb provides powerful illumination. A daylight bulb mimics natural light, ideal for task lighting, while Diall light bulbs offer a reliable and cost-effective option for everyday use. Pair the right light bulb with a lamp base, and explore options like under cabinet lights or a wall sconce to complete your lighting setup.

What is an incandescent light bulb?

An incandescent light bulb is a type of electric light bulb that produces light by heating a filament wire to a high temperature until it glows and emits visible light. In short, an incandescent bulb relies on electricity to heat a wire that generates light. They’re one of the earliest and most common types of electric light bulbs and are found in many households and workspaces alike. As opposed to a bright white light, incandescent bulbs produce a warm yellowish light, making them ideal for creating a gentle ambience in a room.
 

What is an LED light bulb?

An LED light bulb uses light-emitting diodes (LEDs) to produce light. They work by passing an electrical current through a semiconductor, causing the release of light and producing energy-efficient, long-lasting, and versatile lighting. Their energy efficiency makes them more environmentally friendly than alternatives, using significantly less energy while producing the same amount of light. The lifespan of an LED bulb is another reason why they’re so popular, typically lasting tens of thousands of hours, significantly more than alternative options.
 

What are lumens in light bulbs?

Lumens in light bulbs are a measure used to quantify the total amount of visible light from a light source. Essentially, they’re a way of knowing how bright a lamp is without having to turn it on! You’ll understand the brightness level of a light bulb by the following logic: the higher the lumen value, the brighter the light output. Opt for a high-lumen bulb for bright lighting, ideal for kitchens and bathrooms, or choose a low-lumen bulb for some mood-setting lighting, perfect for bedrooms and living spaces.
 

What is the lowest watt light bulb?

LED (light-emitting diode) bulbs are typically the lowest-watt light bulb in the market. Jam-packed with highly efficient technology, they’re able to produce more light output for a given wattage compared to traditional bulbs. The lowest wattage you’ll find will be 1W (sometimes slightly lower) while still providing a decent amount of light output. As a rule of thumb, check out the bulb's lumens for a more accurate measure of their brightness.