LED Corncob Lamp 45W 5000K Mogul Base EX39 - High Output HID

In this review of the Satco S39393 LED corncob lamp, the bottom line is simple: it is for facilities and contractors who need a reliable, high-output HID replacement that cuts energy use without compromising brightness. The reviewer found the lamp delivers broad, neutral 5000K light and replaces much larger HID and incandescent fixtures while being safe for enclosed fixtures and food prep areas. Its long-lasting LED construction and built-in surge protection make it a practical choice for warehouses, industrial sites, and commercial buildings seeking lower maintenance and steady lumen output.

Key Features

• High lumen output: Designed as an efficient LED replacement for 300W incandescent, 65W CFL, and 175W HID lamps, it gives comparable brightness at a fraction of the wattage.
• Mogul extended base EX39: The EX39 base lets the lamp fit existing mogul sockets used in many industrial and commercial fixtures, simplifying retrofits.
• Durable construction: Shatter-resistant materials and no mercury content make it appropriate for food prep areas and tough operating environments.
• Built-in protection: Integrated surge protection and an improved passive heat sink design help the lamp tolerate harsher electrical conditions and manage heat without a fan.
• Wide compatibility: Rated 100-277V, DLC approved, cULus listed and suitable for damp locations, allowing flexible installation in many commercial settings.

Who It's For

This lamp is aimed at facility managers, electricians, and contractors who need to replace older HID or incandescent fixtures with a long-lasting, energy-saving LED option. It suits warehouses, parking garages, manufacturing floors, exterior canopy fittings, and any location that uses mogul EX39 sockets and requires bright 5000K light.

Those seeking decorative indoor bulbs or residential A19 replacements should look elsewhere, as this corncob lamp is optimized for industrial and commercial applications rather than table lamps or enclosed household fixtures with small bases.

Pros & Cons

Pros

• High effective brightness and well regarded for light quality by customers.
• Energy efficient 45W design replaces much higher wattage HID and incandescent lamps for cost savings.
• Durable, shatter-resistant build with no mercury makes it suitable for food prep areas.
• DLC approved and cULus listed with damp location rating adds installation flexibility.

Cons

• Large mogul EX39 form factor limits use to fixtures that accept an extended base rather than standard residential sockets.
• As a specialized industrial lamp, it may be overbuilt and visually bulky for small or decorative installations.

Specifications

Wattage	45 Watts
Color Temperature	5000K
Base Type	Mogul extended base (EX39)
Input Voltage	100-277V
Listings	DLC approved, cULus listed
Ratings	Damp location, acceptable for totally enclosed fixtures
Replaces	300W incandescent / 65W CFL / 175W HID (as LED equivalent)

Our Verdict

The Satco S39393 is a practical, value-oriented industrial LED corncob lamp that delivers bright, neutral 5000K light while cutting energy and maintenance needs. It is best for commercial and industrial sites with mogul EX39 sockets where durability, surge protection, and enclosed-fixture compatibility matter, making it a sensible investment for reducing operating costs without sacrificing illumination.

Frequently Asked Questions

Can this lamp be used in enclosed fixtures?
Yes, it is acceptable for use in totally enclosed fixtures and includes an improved passive heat sink to help with thermal management.

Is this bulb suitable for food prep areas?
Yes, the lamp emits no UV light, contains no mercury, and uses shatter-resistant materials, making it acceptable for food prep environments.

What socket does this use?
It uses a mogul extended base, EX39, so it requires fixtures that accept that larger base type.