21W T5 White Triphosphor H/E Tube, 849mm (40 Pack, £1.55 each)

Essential Cookies

These cookies are essential for the website to function and cannot be switched off in our systems.

Essential cookies can keep track of information between page views like your privacy preferences, logging in or tracking a shopping basket.

You can set your browser to block or alert you about these cookies, but some parts of the site will not then work correctly. These cookies do not store any personally identifiable information.

The essential cookies we set are:

• PHPSESSID - A unique reference to your browser session on our website. This allows us to keep track of things like your basket and whether you are logged in. This cookie will expire after the browser is closed.
• hideVAT / showVAT - This cookie tracks your preference if you want to show prices inc or ex VAT. This cookie persists between your browser sessions.
• plii - This cookie ensures you are kept logged in to the website during your session.
• nfPP-* - These cookies store your preferences regarding cookie preferences, like if you have accepted the notice and if you have optionally disabled non essential cookies. These persist between browser sessions.
• myBasketListId - This cookie help keeps track of your saved basket if you choose to use that functionality.
• PostcodeAnywhere - We use PostcodeAnywhere to provide address lookup services for your convenience.

Non-Essential Cookies

Many of our non-essential cookies are analytical. These cookies provide us with information about how many people visit our website, how they found our website, and how they use our services. They help us to know which pages are most and least popular, as well as providing us information about how visitors move around our site. Some of the information that these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies, some features may not work and we will not know when you have visited our site.

• AddThis: We use AddThis for social sharing that happens from the "'Share This" website links. The cookie allows users to socially share content. AddThis might collect data for the purposes of Online Behavioural Advertising. This might include information like where visitors came from and which type of browser the user is using. This might also include your IP address.
• Facebook: We use conversion tracking from Facebook to help us understand how effective campaigns are from Facebook.
• Bing Conversion: We use conversion tracking to help us understand how effective our digital campaigns are.
• Google AdWords Conversion: We use conversion tracking to help us understand how effective our digital campaigns are.
• Google Analytics: We use Google Analytics to collect information about how visitors use our website. For example, we collect details of the site where the visitor has come from and the total number of times a visitor has been to our website.
• Google Dynamic Remarketing: We use these tracking tools to track user behaviour over time and across third party sites to improve the effectiveness of our online advertising. We collect information about what ads users view and whether they click on the ads. We use this information to improve and customise our advertising.
• Google Tag Manager: We use Google Tag Manager to track user behaviour, traffic analysis and marketing optimisation.
• Hotjar: We use Hotjar to help collect  information about how visitors use our website and analyse user behaviour across our site.

To make sure this site works properly, we may place small data files called cookies on your device.

What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device. Cookies enable the website to remember your actions and preferences over a period of time, so you don't have to keep re-entering them whenever you come back to the site or browse between pages.

How do you use cookies?

We use cookies on our website to provide you with some of the functionality of our services, analyse how you use our site and to distinguish you from other users. Generally speaking, we use two types of cookies; essential and non-essential.

Essential cookies help us to provide our services. For example, these cookies store any preferences you have set whenever you return to our services and by storing information that you have provided as you move between pages. For example, the contents of your basket are stored in this manner so you don't have to keep adding things all over again.

Non-essential cookies are primarily analytical. These allow us to review and analyse how you interact with our website in relation to the content we have and any advertising. These cookies provide us with the following information to help us understand and improve how our site behaves:

• The number of visitors that use our website
• How our users move around our website
• The content that our visitors view
• How long you use our site for
• How you came on to our site; for example, from Google, social media or a direct link

When do you issue cookies?

Unless you have made changes in your browser settings to limit the use of cookies, our website will issue cookies as soon as you visit. Our cookie management banner gives you the option to disable non-essential cookies, or you can manage this in your browser settings. If you disable some cookies either on site or in your browser, please be aware that some of our website's functions may not be available or work as expected.

Where can I find out more information about cookies?

To find out more about cookies, including how you can disable/enable them in your browser, visit www.aboutcookies.org. Please be aware that if you block all cookies (including essential cookies) you may experience reduced functionality when accessing some aspects of our website. Unless you adjust your browser to refuse cookies, or disable non-essential cookies through our management tool, our website will continue to issue cookies.

To find out more about what specific essential and non-essential cookies we use, click on the "Essential" and "Non-Essential" tabs.