Sodium-Metal Halide-Mercury

Essential Cookies

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

These are usually to do with keeping 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. 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 - 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
• nfAlertBarClose - This cookie stops the sites important alerts bar from appearing after you dismiss it.
• industry - This cookie stores the industry you have said you are in so you don't have to re-enter it on future visits. This cookie persists between your browser sessions.
• Loqate - We use Loqate to provide address lookup services for your convenience

Non-Essential Cookies

These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. Some information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance and make improvements.

• 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.