(+44) 01747 858100 DEXTRA GROUP BRANDS PRODUCTS CONTROLS & SYSTEMS CASE STUDIES SUSTAINABILITY BLOG CONTACT LED DUE DILIGENCE QUESTIONNAIRE With hundreds of lighting suppliers offering LED products available from around the world how can you be sure you are purchasing a product that will give you the quality of light, durable long term performance and the energy reduction that you require to justify the investment? Comparisons between manufacturers products can be difficult due to a lack of standardisation in publication of performance figures making the purchase of LED Lighting a daunting process for those of us who are less familiar with the technical aspects of LED Lighting. To simplify this process we have composed the following questions that any diligent customer ought to ask their supplier before going ahead with a purchase. We can provide detailed answers to all of the following questions about any LED products in our range and are happy to be open and honest about any performance criteria and testing that we have undertaken. Please confirm the source lumens and luminaire lumens of your product. Please confirm the wattage of your product, please quote full system wattage including driver losses. Please provide full photometry for this product. If intended for installation within an area with computer screens in use, does the product comply with the glare requirements of BSEN 12464? What make of driver are you using in your product? What make of LED chip are you using in your product? What is the CRI of your LED chip (and to what tolerance is this)? What is the colour temperature of your LED chip (and to what tolerance is this)? What is the initial and end of life SDCM (Standard Deviation of Colour Matching) of your LED chip? Please provide full CE certification for this product. Is this product available with integral emergency, dimming and suitability for a range of ceiling types? Please confirm where this product is manufactured. Are you able to deliver this product directly to site anywhere in the UK and dispose of WEEE recycling simultaneously? Please clarify your warranty offer and the level of cover provided, for example does it cover parts only or parts and labour to repair or replace product on site? Please provide the LM80 test data for the LED chip in order to justify lifetime and warranty claims. Please provide evidence of your company history in order that we can have confidence in your ability to support a claim made within the warranty period. DEXTRA GROUP About Careers Awards & Accreditations Latest New Financing OUR BRANDS Dextra Group Dextra Lighting Dexeco Dexretail Dexreco Dexsor LEDex LEDextra GET IN TOUCH Dextra Group Plc, Brickfields Business Park, Gillingham, Dorset SP8 4PX UK Tel: (+44) 01747 858100 Email: enquiries@dextragroup.co.uk SUBMIT AN ENQUIRY Copyright © 2021 Dextra Group Plc., Brickfields Business Park, Gillingham, Dorset, SP8 4PX, UK. Registered in England. Registration No. 1380089. Terms & Conditions | Privacy Policy - GDPR | Cookie Policy | Gender Pay Reporting | Modern Slavery Statement | Staying Covid-19 Secure We use cookies, just to track and manage visits to our website. ACCEPT COOKIES What are cookies?