Alliance for Lighting Information

Mercury Content of HID Lamps

by David M. Keith

The following data was received from one major manufacturer of HID lamps on the initial content of mercury in their lamps. During the use of the lamp, some of the mercury within the lamp transforms into an inert form, but the relative data on that is not available here yet.

Metal Halide lamps (all)

39-50W = 1-10mg

70-250W = 5-50mg

350-400W = 30-100mg

400-1500W = 100-150mg

High Pressure Sodium standard (non-ECO)

35-1000W = 10-50mg

High Pressure Sodium ECO

50-400W = 1-15mg

High Pressure Sodium Plus ECO (30,000 hour non-cycling works on standard ballasts)

50-400W = <1-6mg

High Pressure Sodium Hg-Free ECO

0 mg!

Further information about mercury content in lamps is welcome here.

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