Lamp Stop wants to remind you that most projector lamp housings are non-biodegradable and therefore take up considerable landfill space.
Most of the replacements contain mercury. Improper disposal of projector bulbs and mercury lamps can add leftover mercury to the environment.
In order to reduce waste and environmental contamination, the U.S. Environment Protection Agency (EPA) has special regulations and nationwide requirements for the proper disposal of replacement lamps.