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eLightBulbs Part #: SL48121

2 Lamp 277 volt Rapid Start Magnetic Sylvania Ballast for 40 watt T12 Fluorescent Sylvania Light Bulb (Sylvania MB2X40277RSSRNK 277V 10/CS 1/SKU 48121)

Sylvania

2 Lamp 277 volt Rapid Start Magnetic Sylvania Ballast for 40 watt T12 Fluorescent Sylvania Light Bulb

	This Product Is No Longer Available
This part is now discontinued with no available replacement or is completely out of stock with no estimated in-stock date.

Related Items:

2 Lamp 120/277 volt Professional Rapid Start Quicktronic Electronic Sylvania Ballast for F40T12 Fluorescent Sylvania Light Bulbs (Sylvania QTP2X40T12UNVRSSC 50314)

Electronic Replacement

Compare Sylvania 48121 with other Brands:

2 Lamp F40T12ES RS 277V Individually Packaged Magnetic Linear Fluorescent Universal Ballast (Universal 443LSLHTCP000I 04533)

Sylvania 48121
MB2X40277RSSRNK 277V 10/CS 1/SKU

Specifications:

Our Part #:	SL 48121
UPC Code:	046135481215
Manufacturer:	Sylvania
Manufacturer Code:	MB2X40277RSSRNK 277V 10/CS 1/SKU
Case Size:	10 ($229.90/Case)
The pricing of $22.99 is per item, not case


Type:	Normal
Energy Used:	75 watts
Volts:	277
Length:	9.5 inches
# of Lamps:	2
Bulb Type(s) Used:	Fluorescent

Features:
F34T12

Lumens (light output)

This refers to the literal measure of the light-output of a particular light bulb, measured in the number of lumens.

Watts (Energy Used)

"Watts" is the term applied to the amount of energy required and used by a particular light bulb. It is an international system unit of power equal to one joule per second. Contrary to popular belief, the wattage of a bulb does not directly measure the brightness; the "lumens" of a light is what defines the actual light output.

Average Lifetime

This refers to an average lifetime rating based on large quantities in test groups. This testing takes into account usage of 3 hours per start for fluorescent lamps and 10 hours per start for HID lamps.

Voltage is a measure of electrical potential.

The "Bulb Type" is typically a combination of the style of bulb as well as the width of the bulb. Usually, the first couple letters will indicate the type; "G" would indicate "Globe", "PAR" would indicate "Parabolic Reflector"... The numbers indicate the diameter of the light bulb in eighths of an inch; a "G40" would be a "Globe" style that is "5 inches" in diameter.

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