Historically, one of the barriers to increased adoption of LED technology has been the relatively high upfront cost, compared with conventional light sources. This is due to the complexities of developing and manufacturing LED lamps. However, the rising popularity of LED has the benefit of bringing down the cost in many regions. Once regarded as an ‘elite’ technology, LED is becoming increasingly affordable. At the same time, it is important to look at the total cost of ownership. The potential energy efficiency gains are impressive. Depending on the particular product and the way it is deployed and operated it is not uncommon to see running costs reduce by 50 per cent. On large sites with multiple light towers, the long-term savings are difficult to ignore. Similarly, the longer lifespan of LED lamps reduces the regularity and cost of replacements and maintenance. It is vital to look at the bigger picture.  Furthermore, LED lighting towers are now being developed with fuel efficient power packs, which can deliver up to 2700 W. This ensures regulation of performance in any kind of temperature and altitude, and means the light tower’s engine can work more efficiently; reducing fuel consumption by an average of 60 per cent in certain applications.