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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Reviews

J**S

Great bargain price!

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

13.12.2025

J**E

Bright Idea

Extremely well packed, nice and bright, works perfectly.

4.09.2025

A**.

Bright Lights

Nice and bright. No complaints.

9.01.2026

H**.

extremely "warm" color

These bulbs look very well constructed with high quality parts and attention to detail (unlike the bulbs that came with my fixtures). The packaging is equally thought out and well packed. One of the nicer "made in China" products I've seen. Excellent price...especially considering my local hardware chain is selling just one bulb for almost the same price as this 6-pack (fortunately, they only carry "cool" white). I've only tried 3 of the 6 bulbs, but they lit up immediately and are all consistent brightness with each other. The light color (3000k) is an extremely "warm" orange-yellow...almost too warm for me, but still much better than the ghastly "daylight" (hospital) white I had previously. UPDATE 4/8/18: One of the bulbs has just stopped working for no apparent reason...and it was only turned on about 8 times for about an hour each session. This brand isn't very reliable, so I'll stick to name-brands next time.

7.07.2017

L**O

Quality of product

Quick and efficient service.’

3.02.2026

J**T

read the product information carefully

product is good quality, but i order wrong length

27.12.2025

J**.

Flourescent lights

these lights are perrect!. I was suprised haow fast they were delivered.

17.11.2025

G**O

Buyer beware!

Did not work in my undercabinet fixtures. Lamps flickered continuously. Replaced fluorescent starters to no avail. Tried Phillips and Sylvania lamps and they worked fine, in the same fixture.

10.11.2025

D**D

The correct bulbs for my unit. Came promptly and was well packaged

28.01.2025

A**A

LOS FOCOS SON LOS QUE BUSCABA

5.11.2025

س**ي

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

16.01.2026

M**L

ampoules difficiles à trouver dans le commerce traditionnel donc très intéressant ! prix abordable et qualité en apparence (marque Sylvania) A voir sur la durée de vie des ampoules...

10.11.2018

F**E

Parfait

3.01.2022

ASIN	B00TJ6XLOS
Accepted voltage frequency	100 to 120 Volts and 60 Hertz
Average Life	20000 Hours
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#7,926 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #27 in Fluorescent Tubes
Brand	KOR
Brightness	480 Lumen
Bulb Base	G5
Bulb Shape Size	T
Color	4100k (Cool-white)
Color Temperature	4100 Kelvin
Control Method	App
Customer Reviews	4.5 4.5 out of 5 stars (4,298)
Date First Available	February 12, 2015
Efficiency	High Efficiency
Finish types	White
Incandescent Equivalent Wattage	8 Watts
Indoor/Outdoor Usage	Indoor
Is Discontinued By Manufacturer	No
Item Package Quantity	6
Item Weight	7.8 ounces
Item model number	No Model
Light Color	Cool White
Light Output Maximum	480 Lumens
Light Source Type	Fluorescent
Light Source Wattage	8 Watts
Light Type	Fluorescent
Manufacturer	KOR
Material	copper
Number of Items	6
Package Dimensions	12.2 x 2.2 x 1.46 inches
Part Number	K25704
Power Consumption	8 Watts
Power Source	Corded Electric
Shape	Tubular(T)
Special Feature	Long Lasting
Special Features	Long Lasting
Specific Uses For Product	Domestic & Commercial Applications
Style	Tubular
UPC	817300020580 852662725704
Unit Count	6.0 Count
Voltage	120 Volts
Wattage	8 Watts
White Brightness	480 Lumens

KOR (Pack of 6) F8T5/CW - T5 Fluorescent 4100K Cool White - 8 Watt - 12" Super Long Life Light Bulbs

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