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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
In addition to the credit goals outlined in MR Prerequisite 2: PBT Source Reduction—Mercury, specify and install long lasting reduced mercury fluorescent lamps consistent with the following minimum criteria:
| Fluorescent Lamp | Criteria |
|---|---|
| T-8 Eight-foot (Standard Output) | 24,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 Eight-foot (High Output) | 18,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 Four-foot (both Standard and High Output) | 30,000 rated hours on instant start ballasts OR 36,000 rated hours on program start ballasts (3 hour starts) |
| T-8 Two-foot and Three-foot | 24,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 U-Bent | 18,000 rated hours on instant start ballasts OR 24,000 rated hours on program start ballasts (3 hour starts) |
| T-5 (both Standard and High Output) | 25,000 rated hours on program start ballasts |
| Compact fluorescent lamps, non-integral ballast | 12,000 rated hours |
| Compact florescent lamps, integral ballast, bare bulb |
10,000 rated hours |
| Compact fluorescent lamps, integral ballast, covered models such as globes, reflectors & A-19s |
8,000 rated hours |
| High Pressure Sodium Lamp | Criteria |
| All HPS | Use non cycling type or replace with LED lamps or induction lamps |
| Note: Longer lamp life contributes to lower mercury use by reducing the frequency of lamp replacement. Do not specify or install circular fluorescent lamps on the project. Do not specify or install probe start metal halide lamps in the project. |
|
What does it cost?
Cost estimates for this credit
On each BD+C v4 credit, LEEDuser offers the wisdom of a team of architects, engineers, cost estimators, and LEED experts with hundreds of LEED projects between then. They analyzed the sustainable design strategies associated with each LEED credit, but also to assign actual costs to those strategies.
Our tab contains overall cost guidance, notes on what “soft costs” to expect, and a strategy-by-strategy breakdown of what to consider and what it might cost, in percentage premiums, actual costs, or both.
This information is also available in a full PDF download in The Cost of LEED v4 report.
Learn more about The Cost of LEED v4 »Frequently asked questions
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© Copyright U.S. Green Building Council, Inc. All rights reserved.
Requirements
In addition to the credit goals outlined in MR Prerequisite 2: PBT Source Reduction—Mercury, specify and install long lasting reduced mercury fluorescent lamps consistent with the following minimum criteria:
| Fluorescent Lamp | Criteria |
|---|---|
| T-8 Eight-foot (Standard Output) | 24,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 Eight-foot (High Output) | 18,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 Four-foot (both Standard and High Output) | 30,000 rated hours on instant start ballasts OR 36,000 rated hours on program start ballasts (3 hour starts) |
| T-8 Two-foot and Three-foot | 24,000 rated hours on instant start ballasts OR program start ballasts (3 hour starts) |
| T-8 U-Bent | 18,000 rated hours on instant start ballasts OR 24,000 rated hours on program start ballasts (3 hour starts) |
| T-5 (both Standard and High Output) | 25,000 rated hours on program start ballasts |
| Compact fluorescent lamps, non-integral ballast | 12,000 rated hours |
| Compact florescent lamps, integral ballast, bare bulb |
10,000 rated hours |
| Compact fluorescent lamps, integral ballast, covered models such as globes, reflectors & A-19s |
8,000 rated hours |
| High Pressure Sodium Lamp | Criteria |
| All HPS | Use non cycling type or replace with LED lamps or induction lamps |
| Note: Longer lamp life contributes to lower mercury use by reducing the frequency of lamp replacement. Do not specify or install circular fluorescent lamps on the project. Do not specify or install probe start metal halide lamps in the project. |
|
