Samsung is going to make sure your light bulbs use as little energy as possible, last literally decades and sort of look like a heat sink to boot. The company, which just released its Advanced LED Light Bulbs for the US, has put forth the A19, the PAR and the MR16, each bulb being designed for a specific purpose. The AR19, which is engineered to replace conventional incandescent bulbs, is dimmable and can shine directionally from vanity lights, wall sconces, assorted lamps and more. The PAR, which is also dimmable, is designed with a variable beam angle between 25 and 40 degrees in mind and slated around track and recessed lighting. Finally, the MR16 Bulb is designed to be used in recessed, vanity, and track lighting and arrives in two different base types with adjustable brightness levels. Samsung has priced the bulbs from $19.98 all the way up to $59.98 with a life expectancy between 27 and 36 years; they're currently available at your local Lowe's location, although if Philips gets wind of it, that could change post-haste.