ENERGY STAR Symbol

Lighting - Decorative Light Strings (DLS)

DLS meet strict performance requirements for energy consumption and light output, and outdoor strings must meet weather-related requirements.

ENERGY STAR qualified DLS:

  • consume up to 95 percent less energy than standard decorative lights (0.2 watts of energy or less per lamp)
  • are more durable and shock-resistant than incandescent strings
  • have a minimum three year warranty
  • use LEDs that last up to 10 times longer than incandescent bulbs

Coloured light strings must have an average maintained light output of no less than 70 percent to qualify for ENERGY STAR. Strings containing white or phosphor-based lamps must have an average maintained light output of no less than 50 percent to qualify.