The Stack Power TOPLED SFH4250S emits almost double the infrared light of the SFH4250 standard component. Employing highly efficient stack technology for thin-film chips, it achieves a typical radiant intensity of 22 mW/sr and a total radiant flux of 70 mW in continuous operation with a 70-mA driving current. Essentially, the component enables the design of very compact lighting units. Delivering a wavelength of 850 nm, the LED does not interfere with a TV’s remote control, which works at about 950 nm. OSRAM OPTO SEMICONDUCTORS, San Jose, CA. (888) 446-7726.