LED chip makers use sapphire wafers

Currently, almost all LED chip makers use sapphire wafers, while few of them are willing to change production equipment to adopt GaN-on-Si epitaxial wafers. However, he emphasized that GaN-on-Si technology is a long-term development for large-size LED epitaxial wafers.

MD of LED Lighting Depot Andrew Littler said: “We’ve got two clear advantages over our competitors: a Payback Calculator that helps consumers make informed decisions about their purchases; and an exclusive range of high-quality bulbs in the form of the Lumaera range – which offer great value for money and feature Phillips LEDs.

“Unlike other LED retailers, our confidence in the range of products we stock means that we also offer a Five Point Promise covering Quality, Reliability, Savings, Certification and Value. Industry-leading warranties and accurate technical specifications are just two of the areas the Promise covers – giving consumers complete peace of mind that they are buying a durable, high-performance bulb.”

The Payback Calculator works by incorporating the total wattage amount for items in the basket, how many hours per day the lights are used and for how many days per week, as well as the amount per unit of electricity the customer pays. It compares these details with the equivalent cost for filament lighting products to give an annual saving amount, payback period for the investment in LED bulbs and the total lifetime saving made by switching to LED lighting.