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G4S11 GERMICIDAL 4W E17 S11 UVC Lamp Light Bulb STERILIZATION SYLVANIA NEW 20021 - Picture 1 of 4
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G4S11 GERMICIDAL 4W E17 S11 UVC Lamp Light Bulb STERILIZATION SYLVANIA NEW 20021

Alimproviste Collectibles
(29104)
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US $16.95
ApproximatelyS$ 21.79
Condition:
New
More than 10 available56 sold
People want this. 38 people are watching this.
Breathe easy. Free shipping and returns.
Pickup:
Free local pickup from Tulsa, Oklahoma, United States.
Shipping:
Free Standard Shipping.
Located in: Tulsa, Oklahoma, United States
Delivery:
Estimated between Sat, 30 Aug and Thu, 4 Sep to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Seller pays for return shipping.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
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eBay item number:304662008914
Last updated on Jun 24, 2025 00:45:17 SGTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Light Color
Ultraviolet
Color
Clear
Wattage
4W
Number of Bulbs
1-4
MPN
20021
Material
Glass
Brand
SYLVANIA
Bulb Shape Code
S11
Type
Lamp Bulb
Model
G4S11
Features
Clear
Country/Region of Manufacture
United States
Bulb Wattage
4 W
Finish
Clear
Bulb Shape
Standard
Lighting Technology
Specialty
UPC
Does not apply

Item description from the seller

About this seller

Alimproviste Collectibles

99.6% positive feedback•137K items sold

Joined Aug 2004
Usually responds within 24 hours
Welcome! I sell lots of other vintage and current items! Add me to your list of favorite sellers! Have a great eBay day!
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Detailed Seller Ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (30,155)

All ratings
Positive
Neutral
Negative
  • i***s (965)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    As described, well packed, promptly shipped - great!
  • n***n (16)- Feedback left by buyer.
    Past year
    Verified purchase
    Continuation from my other comment These bulbs are in excellent condition, work perfectly, and were packed excellently to prevent shipping damage. Seller turned order around almost immediately, for which I'm very thankful. I'm using these to rebuild some old Mineralight UVSL5 and UVSL4 short wave ultraviolet UVC prospecting lights. These bulbs are a great source of 254nM Shortwave UVC, so ALWAYS BE CAREFUL TO NEVER LOOK DIRECTLY AT THE LIGHT without UVC blocking protection. Fine Rare Find !!
  • n***n (16)- Feedback left by buyer.
    Past year
    Verified purchase
    These are very hard to find G4S11 Germicidal bulbs. General Electric originally made them and then Sylvania picked up production. Prolific in the 1960's and 70's in punch fountains to sterilize the dispensing nozzles. Also used Mineralight UVSL4 and UVSL5 short wave ultraviolet prospecting lights. These bulbs work great !! If possible its best to precondition the filaments at reduced current 180mA before putting into use to dislodge amalgamated mercury from the filaments and prolong life.
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