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4W R7s LED Light Bulb - 450 Lumens - 35W Halogen Equivalent T3 Bulb - 78mm - J-Type Base - 4000K/2700K

Part Number: R7S-xK4W


  • Replaces and outperforms 35W halogen equivalent
  • 78mm long with standard R7s (RSC) J-type base
  • Built to last with safe, shatter-resistant materials
  • Emits 450 lumens; available in 4000K or 2700K
  • Perfect for halogen work lamps, floor torchieres, and wall sconces
Select LED Color:
Natural 4000K
Warm 2700K
In Stock
$6.95 ea. (per Bulb)
Volume price as low as $6.25
Orders Ship Today!  11 Hours and 14 Minutes remaining
  • Select options to see various notes.


This dual-ended T3 LED bulb exceeds its 35W halogen equivalent in quality, efficacy, and longevity. Radially-mounted LEDs use minimal power to produce a stunning arc of natural or warm white light. Unlike traditional halogen lighting, this bulb is shatterproof and cool to the touch. A top choice for indoor and enclosed outdoor fixtures, as well as interior home lighting.

Product Details:
  • R7s (RSC) J-type base
  • 78mm double-ended T3 LED bulb
  • Emits 450 lumens at 4W power consumption
  • Available in 4000K natural white or 2700K warm white color temperatures
  • 360° beam angle
  • Lifetime exceeding 25000 hours
  • CE, RoHS compliant
  • 110-130 VAC input
  • Two-year warranty

Warranties & Certifications
2 Years
Super Bright LEDs, Inc. offers a 2-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equal value may be substituted. Read More
In order for certain products within controlled categories, such as electrical and electronic devices, to be legally sold in the European Economic Area, they must bear a CE label, which stands for Conformité Européenne (European Conformity). Products with this label meet environmental, health, and safety standards put into place by European legislation.
  • Utility Lighting
  • LED Work Light
  • LED Stair Lights
  • Stairways
  • Closets
  • Home Accent Lighting
  • LED Flood Lights
  • LED Kitchen Lighting
  • Hallways
  • LED Spotlights


Swipe left to see additional specifications
Part NOCCT / Wavelength
MCD per LEDLED Wattage
Price Ea.Environmental Rating
Product WeightLumen Per DollarLight Distribution
R7S-27K4W2700 --$6.95--64.75 lumen/dollar-
R7S-45K4W4000 --$6.95--64.75 lumen/dollar-
R7S-xK4W - 4W R7s LED Light Bulb - 450 Lumens - 35W Halogen Equivalent T3 Bulb - 78mm - J-Type Base - 4000K/2700K
4W T3 LED Light Bulb - 340 Lumens - 35W Halogen Equivalent - R7S (RSC) Base - 78mm - 4000K/2700K


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Quick service, best source of LED's found!

Super quick service! Although I have to modify the existing fixture for the bulb to fit, I knew this was a probability when I ordered the bulb. I only need to move the fixture "reflector assembly" back slightly. SuperBright seems to be the best source for this type of LED bulb used to replace the old style "halogen" bulb in these small fixtures so I will order more once I've modified the initial one.

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Nice vanity lighting, wife loves it!

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450 Lumens = a disapointment

Did not provide sufficient lumens when used to replace 250-watt halogen bulbs in work -light. Low heat output v/s halogen = no need to use a protective cage in front of the glass lens. Kept bulb to use when lower light output required, Postage cost to return is greater than $6.95 X 2 cost of bulbs!

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