As ever, the articles included are very interesting and appealing, but in this case, I think that the ROI study lacked of the initial investment data. They should have included the initial costs of an incandescent bulb and the LED substitute. With these data included, I still think that the LED option is feasible, but not as economical as the vendor tries to tell us... a vendor, after all. ;)
I remember when the media was full of such studies regarding CFL (Compact fluorescent lamps), but it turned out lately that the real life of these lamps was smaller that the thousands hours promised, making CFL almost as costly as incandescent... but, hey, I'm talking about México, where the voltage sags are daily events. :(
Anyway, I'm still with the energy savings options, and spreading the word! Fernando Salazar Soto
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