Lighting/Lamp Management

In 1999, Princeton University switched to low-mercury fluorescent bulbs.  Low-mercury bulbs can be identified by the green tip on the end of the bulb.

Mercury-containing bulbs are considered a Universal Waste when recycled.  All components of fluorescent bulbs, including low-mercury bulbs, are recycled or reclaimed by a bulb recycling facility.

For all fluorescent bulbs, including low-mercury or green tip bulbs:

  • Building Services and Special Facilities collect the bulbs into cardboard shipping containers that are labeled "Universal Waste" and sealed.
  • Filled boxes of bulbs are stored by Building Services in a holding area until transported to the contracted recycling facility.