Question 1

is this bulb made by Satco?

Accepted Answer

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.

Question 2

How is the 12" measured?

Accepted Answer

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

Question 3

what ballast do these bulbs require?

Accepted Answer

these bulbs are 12volt for rv fixtures

Question 4

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

Accepted Answer

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.

ASIN	B00TJ6XLOS
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Motion Sensor
Best Sellers Rank	#10,486 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Fluorescent Tubes
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 4.4 out of 5 stars (2,136)
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)
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

KOR F8T5/CW Fluorescent Tube Light Bulbs, 8W, 4100K Cool White, 6-Pack

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