The Corn / HID Retrofit category brings together high-output LED lamps designed to replace inefficient metal halide, high-pressure sodium and other HID sources without a full fixture overhaul. These bulbs thread into existing mogul (E39) or medium (E26) sockets and deliver the same lumen output at a fraction of the wattage. They are ideal for upgrading older lighting in commercial, industrial and outdoor settings.
Types and Options
Corn cob lamps feature rows of LED chips arranged around a cylindrical body for omnidirectional light, making them a direct swap for HID bulbs in high-bay and area fixtures. PL retrofit lamps with G24Q bases replace compact fluorescent tubes (such as 42W CFLs with a 25W LED equivalent) and are available in warm to neutral tones. Parking garage retrofit kits with E26 bases can replace up to 175W HID using only 45W to 60W, with versions for 120-277V and 347V systems.
Where to Use Them
These retrofits shine in warehouses, parking garages, loading docks, street and area lighting, gymnasiums and high-bay commercial spaces. PL-style lamps also suit downlights, wall sconces and recessed cans originally built for CFLs in offices and lobbies.
How to Choose
Start with the base type (E26, E39 or G24Q) to ensure mechanical fit. Match the voltage to your system, whether 120-277V or 347V, which is common in Canadian commercial buildings. Pick a color temperature based on the space: 2700K-3000K for warm areas, 3500K-4000K for neutral commercial light, and 5700K for crisp, high-visibility outdoor zones. Confirm the lamp is rated for enclosed fixtures if needed, and check whether the existing ballast must be bypassed for line-voltage operation.
FAQ
Do I need to remove the existing ballast? Many corn and parking garage retrofits are designed for direct line voltage, requiring the ballast to be bypassed. Always verify the product specs.
What voltage should I choose? Use 120-277V for most residential and commercial settings, and 347V for larger Canadian commercial or industrial electrical systems.
Can these replace a 175W metal halide? Yes, a 45W to 60W LED retrofit can replace up to 175W HID while reducing energy use and maintenance.
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT - REPLACES UP TO 175W HID - EX39 - 4000K 120-277V -LED-8033M40-G768.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT - REPLACES UP TO 175W HID - E26 - 4000K 347 -LED-8033E40C-G772.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT - REPLACES UP TO 175W HID - E26 - 3000K 347 -LED-8033E30C-G772.99$
LIGHT EFFICIENT DESIGN
50W SHOE BOX/WALL PACK RETROFIT , REPLACES UP TO 175W HID, EX39, 3000K/4000K/5000K 120-277V144.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, EX39, 3000K/4000K/5000K 347 -LED-8039M345C-A78.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, EX39, 3000K/4000K/5000K 120-277V -LED-8039M345CD-A78.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, E26, 3000K/4000K/5000K 347 -LED-8039E345CD-A78.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, E26, 3000K/4000K/5000K 347 -LED-8039E345C-A78.99$
LIGHT EFFICIENT DESIGN
14W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 70W HID, E26, 3000K/4000K/5000K 347 -LED-8038E345C-A71.99$
LIGHT EFFICIENT DESIGN
11W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 50W HID, E26, 3000K/4000K/5000K 347 -LED-8037E345C-A65.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, EX39, 3000K/4000K/5000K 120-277V -LED-8039M345D-A78.99$
LIGHT EFFICIENT DESIGN
18W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 100W HID, E26, 3000K/4000K/5000K 120-277V -LED-8039E345D-A78.99$
LIGHT EFFICIENT DESIGN
14W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 70W HID, E26, 3000K/4000K/5000K 120-277V -LED-8038E345-A71.99$
LIGHT EFFICIENT DESIGN
11W FLEX COLOR BOLLARD RETROFIT, REPLACES UP TO 50W HID, E26, 3000K/4000K/5000K 120-277V -LED-8037E345-A65.99$
LIGHT EFFICIENT DESIGN
24W BOLLARD RETROFIT, REPLACES UP TO 150W HID, E26, 3000K 347V -LED-8029E30C-A67.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 750W HID, EX39, 3000K/4000K/5000X, 150W-200W-270W 120V-277V -LED-8075M345-FW524.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 400W HID, EX39, 3000K/4000K/5000X, 80W-100W-110W 347V -LED-8027M345C-G7-FW308.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 320W HID, EX39, 3000K/4000K/5000X, 35W-45W-60W 347V -LED-8024M345C-G7-FW131.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 320W HID, E26, 3000K/4000K/5000X, 35W-45W-60W 347V -LED-8024E345C-G7-FW131.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR BOLLARD REPLACES UP TO 150W HID, E26, 3000K/4000K/5000X, 12W-18W-24W 347V -LED-8029E345C-A-FW99.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 400W HID, EX39, 3000K/4000K/5000X, 80W-100W-110W 120-277V -LED-8027M345-G7-FW308.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR POST TOP REPLACES UP TO 320W HID, EX39, 3000K/4000K/5000X, 35W-45W-60W 120-277V -LED-8024M345-G7-FW131.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR BOLLARD REPLACES UP TO 150W HID, EX39, 3000K/4000K/5000X, 12W-18W-24W 120-277V -LED-8029M345-A-FW99.99$
LIGHT EFFICIENT DESIGN
FLEXWATT + FLEXCOLOR BOLLARD REPLACES UP TO 150W HID, E26, 3000K/4000K/5000X, 12W-18W-24W 120-277V -LED-8029E345-A-FW99.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, EX39, 5000K 120-277V -LED-8033M50D-G7101.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, EX39, 4000K 120-277V -LED-8033M40D-G7101.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, EX39, 3000K 120-277V -LED-8033M30D-G7101.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, E26, 5000K 120-277V -LED-8033E50D-G7101.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, E26, 4000K 120-277V -LED-8033E40D-G7101.99$
LIGHT EFFICIENT DESIGN
35W POST TOP RETROFIT, REPLACES UP TO 175W HID, E26, 3000K 120-277V -LED-8033E30D-G7101.99$
LIGHT EFFICIENT DESIGN
65W POST TOP RETROFIT, REPLACES UP TO 320W HID, E39, 3000K 347V -LED-8046M30C-A90.99$
LIGHT EFFICIENT DESIGN
45W POST TOP RETROFIT, REPLACES UP TO 250W HID, E26, 5700K 347V -LED-8024E57C-A90.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 4000K 120-277V -LED-8057M40CD-A205.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 5000K 347V -LED-8057M50C-A164.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 5000K 120-277V -LED-8057M50D-A205.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 4000K 120-277V -LED-8057M40D-A205.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 5000K 120-277V -LED-8057M50-A164.99$
LIGHT EFFICIENT DESIGN
75W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 4000K 120-277V -LED-8057M40-A164.99$
LIGHT EFFICIENT DESIGN
60W PARKING GARAGE RETROFIT, REPLACES UP TO 175W HID,E26, 4000K 347V -LED-8035E40C-A202.99$
LIGHT EFFICIENT DESIGN
45W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 5000K 347V -LED-8056M50C-A144.99$
LIGHT EFFICIENT DESIGN
45W PARKING GARAGE RETROFIT, REPLACES UP TO 250W HID, EX39, 4000K 347V -LED-8056M40C-A136.99$
LIGHT EFFICIENT DESIGN
45W PARKING GARAGE RETROFIT, REPLACES UP TO 175W HID,E26 4000K 347V -LED-8056E40C-A144.99$
LIGHT EFFICIENT DESIGN
45W PARKING GARAGE RETROFIT, REPLACES UP TO 175W HID,E26, 3000K 347V -LED-8056E30C-A152.99$
