Technology Lighting the LED Path
Publish Date: 1/6/2011
The latest technology in LED lighting in the OEX LED worklight range is Prime Drive Technology. This Technology has been under development over the years during various projects with the US government and aerospace industry. These projects led to the most advanced line of LED lighting products, now known as PRIME DRIVE.
Two of the latest models in the OEX range containing Prime Drive technology are the LLX25401 which has 5 LEDs and the LLX27601 which has 7 LEDs
Heat is the enemy of LEDs; Prime Drive’s primary directive is to remove the heat from the LED. On the first stage it deals with heat created from the electronic drive circuitry. A complex electronic circuitry was implemented to drive the LED’s. This circuitry results in a more advanced set of electronics that produces minimal heat allowing for most of the heat sink to be allocated to cooling the LED’s themselves.
Self preservation, the second stage in Prime Drive technology, reduces the heat produced by the LED’s themselves. Electronic Thermal Management constantly monitors the core temperature of each LED and adjusts the output to reduce the heat of the LED. Rather than adjusting the current moving through each LED which is very hard on the components and will eventually cause an LED to fail, Prime Drive flashes the LED at a rate much higher than the human eye can detect, known as pulse width modulation (PWM). This allows the LEDs to be driven at 100% while compensating for the heat, resulting in over 30% more light output per LED than any other product in the OEX range.
Inside LED Light with Prime Drive
By utilising the technology that controls Prime Drive, these lights can be dimmed or flashed. Pulse Width Modulation (PWM) works on the same basis that electronic thermal management does. By flashing the LED at 100% power and at a particular frequency (known as duty cycle), the heat from the LEDs is reduced. So as an example if we flash the LED so it is only on 75% of each second but at a rate that is so high we cannot see the actual strobe effect, we reduce the time that the light is in operation and the heat that is produced. So over a 1 hour period the LED is only working for 45 mins therefore reducing the heat generated by 25%. When PWM is used when dimming a light, amperage draw is reduced in respect to the duty cycle, so a 50% duty cycle (dimmed to 50%) will reduce amperage draw to 50%.
As an end result the OEX range of LED worklights with Prime Drive technology, have an extended life expectancy, a lower current draw and a better light output than we have ever seen before.