ABSTRACT
Although it may appear obvious that engineering a lightbulb with additional LEDs will produce more light, it is anything but a simple task to do so. Thus, as the density of LEDs increases, the cost of the bulb, as expected, also increases. Recently, several manufacturers have been able to make a significant leap forward, introducing products with 80 to 100 or more LEDs in a lightbulb package in which the previous high was between 30 to 36 LEDs. Thus, the number of LEDs per bulb has recently tripled. Unfortunately, a survey of Internet sites selling LED-based lighting indicates that the cost of the more densely populated lighting has increased by a factor between 8 and 12. Thus, although LED density has increased, the retail price of the bulbs has risen even more.
