The Longest Lasting: If you want brilliant light, long life, rugged durability and optimum energy efficiency, LED bulbs are the champs. Typically rated for 100,000 hours (more than 11 years if the light is on 24/7), LEDs have no filament to break and consume very little power because all of the energy goes into creating light, not heat. The traditional drawback with LEDs is that although they are outstanding for near-distance illumination, they do not project light very far. However, with more diffuse light you don't feel like you're walking in a tunnel. Performance is ramping up quickly, and some LED units are now beginning to push aside their incandescent brethren when it comes to light penetration.