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T4 SlimLites and Replacement Bulbs [Closeout Stock]

Hera Lighting section index

T4 Fluorescent SlimLite with XL connecting system

Hera discontinued their SlimLite T4 in the summer of 2018. As of August, 2021, we just sold off the last of them. All 3 sizes are sold out. We STILL have replacement bulbs, which are shown lower on this page. We also show the ELite-LED XL as the new replacement light for SlimLite T4 XL version.

What is the XL version? XL refers to the Pin connection ends. Thus one end of the light has two gold pins, the other end two round sockets to continue more lights in the downline. The ELite-LED XL has the same connection ends. And you can mix them in a string of lights with the SlimLites. So if you only need to replace a light or two, you can add an ELite in with the SlimLites.

The T4 SlimLites did come in 3 sizes, ever since the 1990's when they were first made.
Sizes are: 10", 13", and 20"
Commonly referred to as DL07, DL10, and DL18 (these numbers refer to the wattage of the bulbs)
On the bulbs you will commonly see this writing: T4 7W CW and T4 7W WW; T4 10W CW and T4 10W WW; T4 18W CW and T4 18W WW.
Bulb length measurements are shown much lower on the page.
Official part numbers for the lights were: ES10P (DL07); ES13P (DL10); and ES20 (DL18).

SlimLites operated from 120 volt AC current, they are not low voltage. The ELite-LED XL is the same, power cords plug into standard outlets. No low voltage transformers. And if you see a small white box feeding power to them, that is the hardwire box, not a transformer.
Here is what we can tell you to use for now substituting the ELite-LED XL for your old T4 SlimLites.

The EL/LED/12/4000/XL will be the sub light for the ES10 and ES13 sizes. When replacing for the ES13, very very easy to do, this size fits well. It is about 1" shorter than the ES13 SlimLite. No problem fitting it in, unless you have a tight width situation. The ELites are a T5 size, so slightly larger girth.

For the ES10, you MUST measure. The ELite is 11-11/16" long. So you need almost 1-3/4" more length room for it to fit.

Same is true for using the EL/LED/22/4000/XL as a replacement for the ES20, you need 1-7/8" more length space when replacing the lights 1 for 1.

If you have multiple SlimLites connected end to end, such as two ES20, that is 40" of light. You could use one of the 34" ELites or maybe even the 46" if you have more room. Thus SAVING you money. To use one longer length in place of 2 or 3 shorter SlimLites can save you quite a bit. To view all 5 sizes and more details about the ELite-LED XL version, select that link.

When replacing SlimLites with the XL version of the ELite, do note, the ELite-LED XL comes only in Cool White. There is no warm white option. This is the quick and easy way to replace or upgrade by being able to use your existing power cords and cables. Keeps things simple.

If you need Warm White lights, the normal ELite-LED comes in both CW and WW. But the connection ends are different, thus you would need to replace power cords, hardwire boxes, and cables. Not so bad if you can get at them.

For convenience in ordering the 12" and 22" ELite substitutes for the SlimLite T4 sizes, we show them next on this page.
HER-EL/LED/12/4000/XL
Manufacturer: Hera Lighting
Hera ELite LED XL, part # EL/LED/12/4000/XL, COOL white version, T5 size, 4100K
Has XL pin connector ends to easily use for upgrade from flourescent SlimLite XL,
11-11/16" overall length with connection ends, 5 watts, 418 lumen. Tube chassis length is 11-1/16" and the lighted area length is 10-3/4".
$100.14
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HER-EL/LED/22/4000/XL
Manufacturer: Hera Lighting
Hera ELite-LED XL, part # EL/LED/22/4000/XL, COOL white version, T5 size, 4100K
Has XL pin connector ends to easily use for upgrade from flourescent SlimLite XL,
21-7/8" overall length with connection ends, 9 watts, 793 lumen. Tube chassis length is 21-5/16" and the lighted area length is 20-15/16".
$106.61
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SlimLite T4 Replacement Bulbs

If you are looking for T4 replacement bulbs, we still have good stock on them. If you happen to need any replacement Plexiglas shields or mounting clips, these are available separately also. When ordering multiple sizes of bulbs, add your first choice to your cart and select continue shopping in the cart to return to this page.

And note this about the 7, 10, and 18 watt bulbs. The ends of the bulbs have white plastic caps. These are spacer caps, not insulator caps. They are on the bulb ends to make the bulbs more snug in the fixtures. The fixtures changed sizes throughout the years, by 1/16" to 1/8". Originally, they were made in Korea, then were made in Hera's factory in China. We do not know why the size shifted a spec, we just know some of the older lights are a tiny bit shorter. Thus, the new bulbs with these caps appear to NOT fit in the fixtures. So, the caps are removeable, but not necessarily easily removeable. Read on.

SlimLite T4 bulb end cap removal

We suggest this: DO NOT just try twisting them off. Why? Because you may twist the end of the bulb off. There is a metal cap on each end of the glass that is hidden by the white plastic caps. If you pinch and twist, odds are pretty strong you will twist the metal cap loose, and ruin the bulb. It is better to take an Exacto knife or other easily controlled small razor blade and cut the white caps off. Slice them from the ends and a little down each side, and then peel them off. DO NOT slice all the way down the side of the cap as it extends past the metal cap and overlaps on the glass. A sharp razor can cut the thin glass. So you slice from the thicker end, down the side a little, on two sides, and peel off the cap. Start with just one, that may be enough to make the bulb fit. If not, take off the second cap. It is a little bit of work and we have no work around for it. This is just how Hera had the newer replacement bulbs made. ALSO, be careful. Work slowly. Take extra caution not to cut yourself. This is why an Exacto knife (razor on the end of a pencil like shaft), will be easier to control than a box cutter or utility knife.

The T4 SlimLite bulbs are specialized sizes. There are off brands out there that definitely do not work. But if you do have a bulb that appears to be 1/8" too long, removing the white plastic caps will most likely allow it to fit.

NOTE: Please review the measurements carefully in the pictures below. We have had a few customers report bulbs that are near 1/4" shorter than the sizes we have posted below. Not sure where those bulbs (or fixtures) came from. But when you measure your existing bulb, and it is 5/32" or more shorter than the measurements we posted, the bulbs we have are NOT going to work. Hera first made the T4 size Slimlites in Korea. Then they were changed to the XL pin style. Then they were made in China. So there is the potential that some of the very old SlimLites will not be receptive to the current bulbs.

HER-SFB7CW
Hera SlimLite XL
Hera HER-SFB7CW cool white fluorescent bulb for SlimLite T4 fixtures. Cool white bulbs usually have CW written on glass. (T4 7W CW)
9-1/16'' long pin tip to tip w/caps, 8-9/16'' chassis
(We have 119 left in stock. As of 10-8-21)
$13.55
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HER-SFB10CW
Hera SlimLite XL
Hera HER-SFB10CW cool white fluorescent bulb for SlimLite T4 fixtures. Cool white bulbs usually have CW written on glass. (T4 10W CW)
12-1/16'' long pin tip to tip w/caps, 11-9/16'' chassis
(We 45 left in stock. As of 10-8-21.)
$14.05
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HER-SFB18CW
Hera SlimLite XL
Hera HER-SFB18CW cool white fluorescent bulb for SlimLite T4 fixtures. Cool white bulbs usually have CW written on glass. (T4 18W CW)
19-1/16'' long pin tip to tip w/caps, 18-9/16'' chassis
(We have 481 left in stock. As of 10-8-21.)
$14.85
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HER-SFB7WW
Hera SlimLite XL
Hera HER-SFB7WW warm white fluorescent bulb for SlimLite T4 fixtures. Warm white bulbs usually have WW written on glass. (T4 7W WW)
9-1/16'' long pin tip to tip w/caps, 8-9/16'' chassis
(42 left in stock. As of 10-8-21.)
$13.55
Add
HER-SFB18WW
Hera SlimLite XL
Hera HER-SFB18WW warm white fluorescent bulb for SlimLite T4 fixtures. Warm white bulbs usually have WW written on glass. (T4 18W WW)
19-1/16'' long pin tip to tip w/caps, 18-9/16'' chassis
(We have 344 left in stock. As of 10-8-21.)
$14.85
Add
HER-SMC/T4/METAL
Hera SlimLite XL
Hera SMC/T4/METAL SlimLite metal clip for T4 size SlimLites, 10, 13, 20. - 2-pack w/ screws
$3.92
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HER-SPLEX__ (T4)
Hera SlimLite XL
Hera HER-SPLEX(insert length) plexiglass cover for SlimLite T4 size, length in part number corresponds to SlimLite T4 lengths.
Select from these sizes:
HER-SPLEX10 for 10" light
HER-SPLEX13 for 13" light
HER-SPLEX20 for 20" light
$9.10
Add
And now a little history lesson....
The first version of the T4 SlimLite had what was called blade style connectors. As shown in the picture to the right or just below. Both ends of the light were identical, it did not have distinct in and out ends like the XL Pin connector style do. It was around 1999 when Hera changed all SlimLites to the XL Pin style so the cables, cords, and hardwire boxes would all be the same for the T4 and T5 sizes. And also enable you to use the T4 and T5 sizes together on the same power line when needed.

There are many blade style SlimLites still working today. We still get requests for them. But they have been gone a very long time. So if you still have some of the blade style that are still working and just recently failed, there isn't a quick and easy fix to just replace a light UNLESS you have some that are connected together with connecting cables. Many customers have spliced half of an old blade style connecting cable to half of a new XL connecting cable to make an adapter to go from the old to the newer style lights. So that is the only way we are aware of to continue to use some of the old that are still working with some of the new as replacements. At one time, Hera did have a blade to pin style direct connector adapter, but those are no longer available either.

It is hard to say how much longer your really old SlimLites could last. It may be time to consider upgrading your whole system to LED. When you have something custom built around the specific lights, it can be difficult or near impossible to just upgrade. We do have the Stick3-LED lights which come in 8", 12", and 24" lengths. Combining an 8" and 12" end to end would be a 20" light and that could work in lieu of the 20" SlimLite. Stick3-LED lights are low voltage and do require an LED power driver. They are also dimmable, which would be a nice upgrade over your old SlimLites.
Old blade style Hera SlimLite connections
Special note to Subway and Dunkin Donuts restaurants
The Hera SlimLite T4 is very popular in your food display cases, especially the 20" length. We still have replacement bulbs for you as noted higher on this page. But the fixtures are quickly becoming unavailable. You can replace dead fixtures with the ELite-LED XL and continue to use your existing SlimLite cables and cords. We know rewiring a case sometimes is not the thing you want to do. So the ELite-LED XL might be the solution for you when you need to replace lights.

Depending upon how your lights are set up, if you have 20" lights spaced apart with cables and have a little extra room, the 21-7/8" long ELite can take the place of the 20" SlimLite. If you have 3 of the 20" SlimLites connected end to end, you could replace all 3 of those with one 59" ELite. We can help you with your set up if you can tell us or show us via pictures of what you need to do. If needed, you can send pictures and messages to this e-mail: cabinetlighting@verizon.net

Need questions answered about changing from SlimLite T4 to ELite-LED XL, see our new blog post: Where Can I Buy Hera SlimLites

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