This study compared the abrasion resistance of direct composite resins cured by light-emitting diodes (LED) and halogen light-curing units. Twenty specimens (12 mm in diameter; 1.0 mm thick) of each ...
The U.S. Department of Energy recently awarded $11.5 million to install light emitting diode lighting in parks ... to promote energy efficiency. The LED funding was released Nov.
That's where other factors come in. The LED, or light-emitting diode, is very unlikely to fail, and if it does, it goes out slowly over years. Instead, it's the other electrical bits in LED bulbs ...
LED light wands, or light sticks, provide an effective (and relatively affordable) alternative to a photographer’s flashgun or a videomaker’s stand-mounted lamp. You don’t need to sync a light wand ...