A corn lamp is an assembly of light-emitting diodes(LEDs) on a metal structure. They are called a corn lamp because the yellow LEDs resemble corn kernels on a corn cob. Corn cob lamps are meant to provide a large amount of light while using LEDs, which requires a large amount of diodes. The diodes(sometimes hundreds) are mounted to a metal "cob" that has as much surface area as possible to keep the diodes cool.
A good corn lamp should cool itself with an aluminum structure with lots of surface area to let the heat escape. Some LED corn lamps have fans and while this sounds fancy, they are problematic and cheap ways to make a corn lamp. The fan's motor will die out long before the LEDs fade, if the fan is not stopped by insects or dust before then. The image to the left shows a corn lamp from manufacturer, 3BL. The compex structure of 6063 aluminum will dissipate the heat better than a fan would. This is a high-quality corn lamp!
There is a range of quality of LED chips. The cheaper ones will have low Color Rendering Index(CRI). Look for LEDs made by a reputable brand. GK uses chips made by Samsung.
In order to provide proper performance of the LEDs ove time, a transparent plastic covering should cover the diodes to protect them from dust and insects. This will keep the light quality from diminishing over time.
Corn lamps are great replacements for any high lumen-output lights, including these applications.
Post Top Lamps
post top lighting for corn lamp
Bollard Pathway Lighting
bollard lamp post for corn lamp
Exterior Wall Packs
wall pack for corn lamp
parking lot lights for corn lamps
Interior High Bay Lamps
high bay light for corn lamps