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- USA
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
RKS 4 ft. 118-Watt Equivalent Integrated LED White Magnetic Strip Retrofit Kit, 3500K (4-Pack)Optilumen RKS Universal Fluorescent Fixture Retrofit Kit. Easily converts most all your existing residential and commercial 4 and 8 foot T5, T8 and T12 linear fluorescent light fixtures into an integrated LED light fixture. This retrofit kit works with the earliest to the latest versions of ceiling mount, four foot and eight foot fluorescent light fixtures, regardless of the style, manufacturer or existing ballast type including linear high bay, strip
Optilumen RKS Universal Fluorescent Fixture Retrofit Kit. Easily converts most all your existing residential and commercial 4 and 8 foot T5, T8 and T12 linear fluorescent light fixtures into an integrated LED light fixture. This retrofit kit works with the earliest to the latest versions of ceiling mount, four-foot and eight foot fluorescent light fixtures, regardless of the style, manufacturer or existing ballast type including linear high-bay, strip or wrap fixtures and even chain suspended shop lights. Since the retrofit kit contains the LED driver, there is no guess work to determine if it is compatible with your existing fixtures’ magnetic or electronic ballast. Super simple installation in 3 easy steps: 1). Remove existing bulbs and ballast. 2). Attach magnetically backed driver and connect to AC power source. 3). Attach magnetically-backed LED strips and quick connect to Y-harness. If your fixture isn't steel, no worries, the kit is pre-drilled and comes with mounting screws. The fixture is DLC listed to qualify for commercial lighting rebates and special incentives in certain regional areas.- One retrofit kit converts a 4 ft. fixture with 4 lamps or two 8 ft. fixtures with 2 lamps; See our Optilumen RKS Selection and Savings Chart
- Each kit includes (2) 42 in. LED magnetic strips, (1) 40-watt driver, (1) quick-connect output harness, and optional mounting screws
- Energy efficient LED strip lasts roughly 182.5 years (Based on 3 hr/day)
- Estimated yearly energy cost: $4.82 (based on 3-hours/day and 11/kWh; costs depend on rates and use)
- Produces 5900 lumens of 3500K CCT (warm white) light
- Perfect for cold start applications down to -49°F and as high as 158°F; Turns on instantly with no annoying flicker or hum
- UL listed, suitable for damp locations, rated for 200,000 hours, DLC qualified and 7-year full warranty
- LED strips and driver are backed with rare earth magnetic tape, attaches to the existing steel light fixture in seconds
- For non-steel fixtures and high vibration applications, the kit is pre-drilled and comes with mounting screws too
- Thermally conductive rare earth magnetic tape maintains its extraordinary strength across wide temperature variations; it also acts as a heat sink which increases the life of the LEDs and driver
- Accepts 90 to 277-volt and 50 to 60 Hertz input
- Power factor of up to .989
Features
| Item Weight | 5.6 |
| Hooded | No |
| Product Weight (lb.) | 5.6 lb |
| Fixture Color/Finish | White |
| Package Quantity | 4 |
| Watt Equivalence | 118 |
| Commercial Light Type | Strip |
| Color Temperature | Warm White |
| Actual Color Temperature (K) | 3500 |
| Returnable | 180-Day |
| Wrap cover/lens included | No |
| Compatible Bulb Type | LED |
| Lumens | 5900 |
| Hardware Included | Yes |
| Connection Type | Hardwired |
| Replaceable LED Module | Yes |
| Dimmable | No |
| Fixture Color/Finish Family | White |
| Color Rendering Index (CRI) | 82 |
| Product Height (in.) | 9.25 in |
| Product Width (in.) | 46 in |
| Length/circumference (in.) | 42 |
| Product Depth (in.) | 2.75 in |
| Certifications and Listings | UL Certified |
| Manufacturer Warranty | 7 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1230 reviews
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Product Reviews
★★★★★ 5
Nice quality!
Size: King, Color: Dark Heather Grey
Wonderful! These jersey sheets are so soft and cozy. They have a nice stretch to them and a nice thick durable fabric. Very satisfied with this product!
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Reviewed in the United States on February 16, 2026
★★★★★ 4
Very soft and nice quality
These sheets are very soft and made of a nice quality material. They are deep pocket, but since we have a two inch topper on our mattress, it doesn’t fit/cover it as well as I’d like. For a normal mattress, without a topper, it would be fine. The elastic seems of good quality as well as the stitching. I do like the gray color as well. Very pretty color. If you are looking for cool sheets, these aren’t for you; however, these are very soft and cozy. We just don’t use as many blankets to cover up, and it seems to be fine. I would like to buy another set, but may wait to see how well the fitted sheet works. We’ve used them a couple weeks and so far, the fitted sheet is working okay.
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Reviewed in the United States on April 21, 2024
★★★★★ 5
pleasant touch and color texture - not all colors are the same
I usually go for 100% cotton only but I really like the color and price of these sheets. Surprisingly, they feel very nice and fit my 12" mattress without being under stretched or over stretched. Non stretch sheet can act as a light blanket in hot summer days. I ordered a few more set of sheets in different color. The dark heather grey felt different, more coarse and not as smooth. It seems that color is 50% cotton 50% polyester while the mint was 60% cotton 40% polyester which for me made a very big difference in the manner it felt. So I returned the dark heather grey one.
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Reviewed in the United States on July 28, 2025
★★★★★ 5
Super soft!
Size: Full, Color: Oatmeal
So soft! Loved these.
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Reviewed in the United States on May 9, 2026
★★★★★ 1
So thin you can see through and have holes after second wash!
I cannot understand all these high reviews! People don’t seem to be using these sheets!
I mean don’t get me wrong they COULD be 5-star worthy and I would’ve given 5 stars, if IF the quality was just better.
I mean these things have nice colors, are super soft. The duvet cover has a zipper. I sleep well in them. A dream! All I wanted and what I was looking for!
So why only a 1 star review you may be asking now?
Well, the zipper is very flimsy and out of super weak and cheap plastic, but the worst is, that the material (the fabric) is so thin, that you can look through!
I washed the whole set twice now. Cold as per label. And the pillow covers have holes around the edges! Not because there was something sharp in the dryer (or washer) with them (I washed and dried the duvet cover separately from the rest), NO. Just because the fabric is so darn THIN! It’s unbelievable!
To the manufacturer: You could have made a really, really nice product, if you wouldn’t be greedy or soulless and would have just used a decent fabric thickness.
This is ridiculous!
I don’t know if all this made in china (well in this case Pakistan) crap is just made to take all our money for shoddy quality or to annoy the heck out of us because they can…
If anyone in Pakistan reads this review (HAHA I know): please please make the same product, but use higher quality materials. Thicker fabric which you cannot see through and which will not rip or get holes after 2x washing. A tad better zipper, that doesn’t feel so flimsy that you need to be super careful to not break it, and you have a perfect product!
Unfortunately, the way this was made, I can only give 1 star. Please be smarter than me and believe all the 1-star reviews that talk about how thin the fabric is!
Please see the attached photos for an impression of the fabric quality.
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Reviewed in the United States on December 6, 2023
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