Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should contact Chris Bond on 020 75056816 Whitecroft Lighting has supplied about 10,000 special compact fl uorescent luminaires for use in offices at 30 Gresham Street in the City of London. Whitecroft developed a bespoke luminaire to resolve issues of high-volume air handling by designing a bypass system to reduce installed building costs.