How Energy Efficiency Was Calculated

Mean lumens were divided by watts. If mean lumens were not available, then initial lumens were divided by watts.

Why TCLP-compliant Bulbs Should Not Go in the Trash

Toxicity Characteristic Leaching Procedure (TCLP) is used by US Environmental Protection Agency to determine if certain toxic substances are likely to move from a landfill into groundwater. TCLP does not:

• Recreate actual landfill conditions, which vary widely.
• Simulate incineration, which can release product contents directly into the air.
• Provide any insight into the potential dangers posed by exposure to toxic chemical-containing products during use.

Click below for product names that SF City staff are REQUIRED to buy.

• Ceramic Metal Halides
• Compact Fluorescents (CFLs)
• Fluorescent Tubes
• High Pressure Sodium (HPS)
• LEDs