PhotonStar LED Group Plc announced unaudited earnings results for the year ended 31 December 2016. The group's full year revenue for 2016 was approximately £5.4 million against £6.9 million a year ago. This reduction in revenue, when compared with the previous year, is due to the continued price pressure in the more traditional area of the group's business (light fixtures), the on-going emphasis by the group on transitioning itself away from light fixtures and into intelligent lighting solutions and building control systems and market uncertainty following the UK's 'Brexit' referendum which has had a negative impact on existing and potential customers. These factors impacted group revenues strongly during fourth quarter of 2016 and have also impacted revenues during January 2017. The group made an unaudited EBITDA loss in 2016 of approximately £0.6 million and unaudited loss after tax for the year of £1.3 million. Included in the loss after tax is an investment by the Group into its halcyonTM system of approximately £0.6 million, whilst revenue generated by the installation of halcyonTM, primarily as trial systems that are expected to result in much larger projects, was approximately £0.5 million. The group had drawn down £0.83 million of invoice financing debt out of its total maximum facility of £1.65 million.