Sylvania 40973 | LED 100W - Replaces 400W HID - E39 Base - 5000K - UL Type B - 4ct

Sylvania 40973 | LED 100W - Replaces 400W HID - E39 Base - 5000K - UL Type B - 4ct

5 Year WarrantyDLC Listed
  • $504.95

($126.23 Each - Sold in Case of 4)

Contact Us for current stock/lead time.

ULTRA LED High Bay lamps are ideal replacements for HID indoor high bay applications.

Benefits and Features

  • Lasts up to 5x longer than HID lamps
  • No warm-up time, instant on with full light output and stable color
  • Consumes up to 74% less energy than equivalent HID lamps while delivering same light output
  • Replacement for 175W - 400W HID applications
  • Up-lighting for an aesthetic lit appearance in fixtures
  • Extendable base up to 50mm for better fixture compatibility
  • Up to 140 LPW
  • 4000K and 5000K color temperatures
  • CRI 80+
  • 120° directional beam angle


  • 120-277Vac
  • Power Factor >90%
  • 6kV surge protection
  • Step dimming capability when paired with optional motion/daylight sensor and remote control

Rated Life

  • 50,000 hours (L70)


  • Standard 5 year lamp warranty

Ambient Operating Range

  • -40°F to +122°F (-40°C to +50°C)

Certifications and Listings

  • DLC 5.1 Rated
  • IP64 Damp Rated
  • cULus
  • RoHS
  • FCC
  • Lead Free
  • Mercury Free


  • Requires easy ballast by-pass
  • Lamp operates directly on line voltage, 120-277Vac.
  • Additional accessories are available

Additional Specifications

  • Should be used in open fixtures only
  • Verify fixture size before installation to ensure fit
  • Dimming function can only be enabled when the lamp is paired with SYLVANIA motion sensor and remote control (purchased separately)
  • Not suitable for outdoor fixtures with air vents
  • Should not be directly exposed to water

About Sylvania

One of the most well-known names in the lighting world, Sylvania has been a leader in lighting innovation for more than a century. The company's products are designed to save energy, improve the quality of light in any space, and meet sustainability goals throughout the world. Sylvania has been a leader in both traditional and LED lighting products, from bulbs to luminaires.

BaseE39 Mogul
Beam Angle120°
CertificationsCEC, cULus, DLC, FCC, RoHS
Color Temperature5000
ConfigurationUL Type B (Ballast Bypass)
Diameter (in)9
Equivalent Watts400
Lamp TypeLED
MOL (in)7.6
Rated Life Hours50000
Warranty5 Years

ProLampSales Order Code6993251434696
HS Code853990


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Optional Parts & Accessories

Alternative Products

Shipping Policy

Expedited Shipping Rates

For expedited shipping, please contact us for a price quote and cutoff times.

Continental United States

  • Shipping for most orders is calculated at checkout*
  • If you want to ship on your own UPS/Fedex account, please contact us

*Certain restrictions apply, including oversize, heavy objects, and some fixtures/equipment.

For large, heavy, or oversized items, additional shipping charges may apply. The site may not correctly calculate freight shipments at time of order. Large counts of smaller products may also result in additional shipping costs. We apologize for any inconvenience this may cause. Please contact us for an estimate on large items to determine an accurate shipping cost.

Alaska & Hawaii

  • Shipping calculated at checkout

US Territories

  • Contact us for a quote.

International Shipping

Contact us for a quote. We do not ship most glass bulbs and fixtures internationally. If you have your own UPS/Fedex/DHL account, we may be able to ship using that.

Shipping to US-Based Freight Forwarders

For shipments to freight forwarders, we are only responsible for shipping to the freight forwarder directly. Please have your freight forwarder check your items for damage. We are not responsible for shipping damages incurred at or after the items leave the freight forwarder.

California Title 20 Notice

Certain general service lighting products are no longer allowed to be sold in California. We make every attempt to inform you before purchase which items are unable to ship to California. If we discover an item you purchased can not be shipped, we may have to cancel the order. We apologize for any inconvenience this causes. Please contact your state representative for more information.

California Prop 65

California Prop 65 WarningWARNING: Cancer and Reproductive Harm -

Returns Policy

Returns are sometimes necessary. Our policy is to provide you with a hassle-free return experience.

Accepted Returns

Items Damaged in Shipping

If the product was damaged during shipping, first keep all packing materials, then call or email us to report the damage. Damage must be reported with 3 days of you receiving the shipment. We will have you return the product using the Returned Material Authorization (RMA) we will provide. We will send you a new product or provide a full refund and we will reimburse you for any shipping charges you may incur.

Missing Items

If all the items you ordered are not in the shipment, call us within 3 days of receiving the shipment so we can promptly send the missing item(s).

Wrong Product Ordered or Product No Longer Needed

If you ordered the wrong product call or email us so we can help you get the correct product. If the product purchase error was in no way the fault of information provided on, you are responsible for the return shipping cost and a 25% re-stocking fee.

30 Day Return Policy

Items ordered from ProLampSales can be returned within 30 days of receipt of the shipment in most cases. Please check that all of your items are present and in working condition within this timeframe.

After 30 days, if the product does not perform to specifications or fails within stated warranty periods, see manufacturer warranty information for procedures to follow.

Products that Differ from Our General Return Policy

International Orders

International orders may be non-returnable. Please contact us before ordering.

Gas Detectors & Air Quality Monitors

For safety reasons, we do not accept returns on gas detectors or air quality monitors. Once these products leave our warehouse, we can not be sure what environments they are used/stored in or what dangerous gases or pollutants they are exposed to.

Larson Electronics

Larson Electronics products of any kind are non-returnable. Larson Electronics orders are subject to a minimum 15% (and up to 100%) pre-shipment cancellation fee. If you need help with a product, please contact us before ordering or verify that you are ordering the correct item.


Non-Quick Ship Soraa brand products are non-returnable. If an error was made in order fulfillment or shipping, replacements may be sent out or a refund issued.

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