I recently purchased a Fenix PD35 850 lumen LED flashlight and it comes with a warning label that it becomes hot to the touch after running on full for a period of time. After that time period comes, the micro-circuitry powers it down to the next highest setting (and so on) in order to prevent damage. Good article on the subject.
Great discussion on the finer points of LED design considerations. Also, in addition to price drop, in many cases LED's can also offer the advantage of longer life over the other technologies that they are replacing.
I agree. This Mentor Graphics LED Thermal/Performance analysis software package would have been great to use when I was developing LED lighting fixtures while working at Hunter Fan. This data would have served as a baseline while taking actual thermal and lumen measurements using an Integrating Sphere. Management of thermal and lumen performance of LEDs is quite a challenge especially when you have to add the SMPS (switching mode power supply) LED drivers heat dissipation data using a per-square inch pcb in to the overall thermal equation. Nice article!
Just when you thought mobile technology couldn’t get any more personal, Procter & Gamble have come up with a way to put your mobile where your mouth is, in the form of a Bluetooth 4.0 connected toothbrush.
The grab bag of plastic and rubber materials featured in this new product slideshow are aimed at lighting applications or automotive uses. The rest are for a wide variety of industries, including aerospace, oil & gas, RF and radar, automotive, building materials, and more.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.