According to the updated LED light bulb sales price which investigated by LEDinside, a research division of TrendForce, the ASP of the 40W equiv. LED light bulbs declined by 1% in May (2013), reaching USD16. The most obvious price reduction was occurred in Taiwan. The ASP of the 60W equiv. LED light bulbs declined by 0.1% to USD23.8. The price was unstable in all regions with less renewing products.