Annapolis Lighting
Rockville, Columbia, Annapolis

Artisan Lamp
Washington, DC

Burgess Lighting
Fairfax, VA

Dominion Electric 
Arlington, VA

Dominion Electric 
Chantilly, VA

Dulles Electric
Sterling, VA

Ferguson Enterprises  
Alexandria, VA

Ferguson Enterprises  
Chantilly, VA

Maurice Electric
Washington, DC

Maurice Electric
Rockville, MD

Metropolitan Lighting Design
Chantilly, VA

Outdoor Illumination
Bethesda, MD

Rexel 
several locations

LED lighting is the next wave in lighting. LED bulbs are often more energy efficient than CFL's. BUt they have some important advantages. They generate almost no heat compared to incandescent or CFL bulbs. So they reduce summer air conditioning costs. They last an incredibly long time. Los Angeles is replacing street lamps bulbs with LEDs, so the city doesn't have to pay workers to replace burned out traditional bulbs over and over. This makes them a good choice for hard to get to locations like outdoor flood lamps. Also, they contain no mercury, which CFLs do contain. This alone is reason enough to replace your CFLs.