is this bulb made by Satco?

I bought 6 F8T5 halophosphor long tubes for little over $1.00 each.They are made by "CH LIGHTING" using the rare earth halophosphor powder on their line of products.They advertise it as of stable quality, reliable, long life span and energy saving (8 W) It has a 3000K degree color (closer to tungsten than fluorescent) which is comfortable to eyes. A day-light tube has close to 5000K or 6000K degrees which it will be hard on my eyes. I think they are good bulbs, I am using one only at this time. However, I have a problem: after 2 months the bulb doesn't start completely at the first start and flickers a bit. I decided to turn the bulb OFF and ON again and the bulb works just fine, pleasant color and I leave it on even in the day-light. You know, living in Seattle is so dark in the winter that we are moving like zombies and you need to have some light on most of the time. I am using also an old light appliance I found in the basement 25 years ago so I don't know if this bulb has a slight issue or my old appliance/starter has an issue being old. I will test another bulb next month. But I encourage you to buy it, the price is right and I am sure it is going to work. What I like is that it doesn't create electromagnetic fields interfering with my portable radios or phone.

How is the 12" measured?

It includes the prongs and measure 11 and 7/8's. Working well for under counter lighting.

what ballast do these bulbs require?

these bulbs are 12volt for rv fixtures

Bought a ge f8t5/cw and it is literally 1/4" longer than the one that blew. anyone know which brand would be shorter?

I was unable to use these as they did not fix my fixture also. The product I bought that works in my fixture is a Sylvania bulb made for my fixture. They are a little shorter but the main thing is at the end of each bulb is a rounded rectangle. When putting in the fixture you need to rotate them and they snap in. I had some problems trying to find what worked in my fixture. I ended up going to a lighting place in my area with a sample bulb and they took care of it immeadiately.

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F8T5/CW Fluorescent Tube Light Bulbs, 8W, 4100K Cool White, 6-Pack | Bi-pin G5 Base, 12-inch Length for Under-cabinet and Display Lighting, 120V

Product ID: 12917685

Details

Brand
KOR
Bulb Shape Size
T
Light Type
Fluorescent
Special Feature
Motion Sensor
Wattage
8

⏳15,000-hour lifespan

⚡8W energy-efficient power

💡480 lumens bright output

28514CFA

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Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💼 Light smarter, work brighter—because your space deserves the best.

VALUE PACKED 6 BULB SET - Stock up and stay prepared—ideal for outfitting multiple fixtures or keeping spares on hand for uninterrupted brilliance.
BRILLIANT 4100 K COOL WHITE GLOW - Enhance your workspace with crisp, clean lighting that sharpens focus and boosts productivity.
LONG LASTING 15 000 HOUR DURABILITY - Less hassle, fewer replacements—light up your life with bulbs that keep going as long as you do.
ULTRA EFFICIENT 8 W POWER CONSUMPTION - Save on energy bills without compromising on brightness—smart lighting for the eco-conscious professional.
PERFECT 12 INCH FIT FOR VERSATILE SPACES - Seamlessly upgrade under cabinets, display cases, and utility rooms with direct replacement ease.

The KOR F8T5/CW Fluorescent Tube Light Bulbs deliver 480 lumens of crisp 4100K cool white light using just 8 watts of power. Designed as a direct 12-inch replacement for F8T5 fixtures, these bulbs offer a super long 15,000-hour lifespan, making them ideal for both residential and commercial under-cabinet, workspace, and utility lighting. Sold in a convenient 6-pack, they combine energy efficiency, durability, and versatile application to elevate your lighting experience.

Specifications

ASIN	B00TJ6XLOS
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Motion Sensor
Best Sellers Rank	#12,145 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #32 in Fluorescent Tubes
Brand	KOR
Brand Name	KOR
Bulb Base	G5
Bulb Shape Size	T
Color	4100k (Cool-white)
Color Temperature	4100 Kelvin
Connectivity Technology	Normal bulb
Control Method	App
Controller Type	Push Button
Customer Reviews	4.4 out of 5 stars 2,136 Reviews
Incandescent Equivalent Wattage	8 watts
Indoor Outdoor Usage	Indoor
Item Weight	8 ounces
Light Color	Cool White
Light Output Maximum	480 lumens
Light Source Operating Life	20000 hours
Light Source Type	Fluorescent
Light Source Wattage	8 watts
Light Type	Fluorescent
Manufacturer	KOR
Manufacturer Part Number	K25704
Material Type	copper
Model Number	No Model
Number of Items	6
Package Quantity	6
Power Consumption	8 watts
Power Source	Corded Electric
Shape	Tubular(T)
Special Feature	Motion Sensor
Specific Uses For Product	Domestic & Commercial Applications
Style Name	Tubular
UPC	817300020580 852662725704
Unit Count	6 Count
Voltage	120 volts
Wattage	8
White Brightness	480 lumens

Reviews

A**.

Light up well, no issues. Would buy again.

works as they should. i use them for under cabinet lighting on my office desk units. I'd buy again.

21.08.2026

J**S

KOR (Pack of 6) F8T5/CW - T5 Fluorescent

Looks Good. Worked as advertised. Nice Packaging

26.03.2026

L**.

Amazing value

These lightbulbs are so expensive at Home Depot. I got this whole package for what I would’ve paid for one. Everyone was perfect. None came broken. I ordered all of my lightbulbs now on Amazon.

9.05.2026

A**R

Price ain't everything

I bought 2 six packs of these bulbs for my 5th wheel. So far I've had (2) two dead bulbs out of the box. The one's that work are fine and the price can't be beat BUT. They did refund the price of one bulb so far. I feel they are a stand up company, just know you may get bad bulbs on your order.

13.10.2018

J**E

Bright Idea

Extremely well packed, nice and bright, works perfectly.

4.09.2025

J**S

Great bargain price!

Good Deal for pack of 6, uniform cool color among tubes, steady illumination.

13.12.2025

G**6

Great product for the price

Excellent quality

26.02.2026

S**A

Installation instructions leave much to be desired.

I finally got around to installing your lights. Unfortunately you instruction leave much to be desired. I have done this upgrade with both 4ft and 3ft led in my garage, kitchen and bathrooms. In all cases, coming out of the wall from my homes electrical system, I had: - a black wire (power) - a white wire (common) - a green wire (ground) In all cases, the florescent fixture had a ballast with a black wire, a white wire, 2 blue wires, 2 red wires and two yellow wires. The black wire connected to the black wire, the white wire connected to the white wire, the red & blue wires connected to one end of the tube terminal and the yellow wires connect to the other tube terminal. Your installation diagram is in black and white and shows a before pic with the ballast and then another pic with no ballast. But your instructions do not give instructions on where to connect the blue, red nor yellow wires on the the fixture once the ballast is removed. I had to go to the internet to get proper installation instructions. Since your led tubes can be damages if the wires are not connected correctly, I am going to give your product an unsatisfactory rating and hope that other customers do the same until such time as you provide better installation instructions.

1.09.2015

A**A

EXCELENTE

LOS FOCOS SON LOS QUE BUSCABA

5.11.2025

س**ي

Fantastic product

It's a fantastic product, even better than I expected. Fast delivery. I highly recommend this seller.

16.01.2026

R**E

Great lights

Lots of light, fit perfectly in my bug zapper the Bell&Howell monster zapper for anyone who needs replacement bulbs for that, these work great!

26.07.2023

A**R

Caravan

Does as expected

20.06.2026

F**E

conforme

Parfait

3.01.2022

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