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Relamping? Your Usual Lamps May Not Be Available Anymore: HOW NEW LIGHTING STANDARDS COULD IMPACT YOUR NEXT REPLACEMENT.

The most common lamp in commercial buildings--the 32W linear fluorescent T8--is no longer manufactured due to new federal standards.

An estimated 112 million 32W T8s were sold in 2017 alone, but 70% of them don't comply with the new DOE requirements. All general service fluorescent lamps are now required to deliver higher efficacy as measured in lumens per watt (see table at right) and lamps that don't meet the mark can't be manufactured anymore.

What does this mean for lighting projects? In the short term, not much. The mandate only applies to manufacturers making new lamps, not retailers or end users, so you're free to purchase whatever works for your building. There are also plenty of compliant fluorescent T8s available, so the new standard doesn't have to mean an expensive upgrade. The next time you need to order lamps, you'll have three options:

1) Stock up on noncompliant lamps. The old lamps won't disappear from the market right away--they just can't be manufactured anymore, so the existing supply will slowly dwindle. You can still buy noncompliant 32W T8s as long as vendors still have them in stock, explains Elaine Miller, Commercial Lighting Programs Manager for the Northwest Energy Efficiency Alliance, a partnership of more than 140 utilities and efficiency organizations in the Northwest.

2) Switch to fluorescent T8s that comply with the standard. There are two ways to accomplish this, Miller explains: use energy efficient lighting with the same wattage but a higher efficacy, or switch to 28W lamps with the same efficacy you're used to.

"All of the major manufacturers have come out with a compliant 32W product, so it's the same wattage. They just bumped up the efficacy to comply because it's an efficacy standard, not a wattage standard," Miller says.

"However, if you have to switch to a new product or model number anyway, why not take advantage of the low-wattage options? You're going to get the same level of light you did with your old 32W lamps, but save 3W in every lamp. If you buy thousands of these every year, that adds up quite a bit."

3) Upgrade to LED products. If your budget allows, you can avoid the periodic updates to fluorescent lamp standards entirely by installing LED lighting. LEDs deliver even more lumens for every watt they consume, so your power consumption will drop significantly. An LED T8 tubelight meant to replace a 32W fluorescent generally consumes 15-18W.

"Don't just be habitual and buy the product you've been buying all the time," Miller adds. "Say, T want better efficiency,' and ask for low wattage."

Janelle Penny janelle.penny@buildings.com is Senior Editor of BUILDINGS.

Caption: REPLACING YOUR LINEAR FLUORESCENT LAMPS? New standards are taking many old 32W T8s out of circulation.

Caption: AS OF JAN. 26, 2018, manufacturers must meet or exceed these efficacy standards for all general service fluorescent lamps.
Lamp Efficacy Requirements

       Lamp type                Correlated        Minimum average
                            color temperature      lamp efficacy
                                                   (lumens/watt)

4-foot medium bipin        [less than or equal         92.4
                           to] 4500K

                           >4500K and [less            88.7
                           than or equal to]
                           7000K

2-foot U-shaped            [less than or equal         85.0
                           to] 4500k

                           >4500K and [less            83.3
                           than or equal to]
                           7000K

8-foot slimline            [less than or equal         97.0
                           to] 4500K

                           >4500K and [less            93.0
                           than or equal to]
                           7000K

8-foot high output         [less than or equal         92.0
                           to] 4500K

                           >4500K and [less            88.0
                           than or equal to]
                           7000K

4-foot miniature bipin     [less than or equal         95.0
standard output            to] 4500K

                           >4500K and [less            89.3
                           than or equal to]
                           7000K

4-foot miniature bipin     [less than or equal         82.7
high output                to] 4500K                   76.9

                           >4500K and [less
                           than or equal to]
                           7000K

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Title Annotation:THE ENERGY MANAGER
Comment:Relamping? Your Usual Lamps May Not Be Available Anymore: HOW NEW LIGHTING STANDARDS COULD IMPACT YOUR NEXT REPLACEMENT.(THE ENERGY MANAGER)
Author:Penny, Janelle
Publication:Buildings
Date:Apr 1, 2018
Words:624
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