Looking for cobra head LED retrofit kits that swap in easily and improve efficiency, color, and reliability? This guide highlights five top options that fit a cobra head or cobra-head-inspired fixture style, ideal for outdoor street lighting, parking lots, and security lighting. Each product is evaluated for who it’s best for, installation ease, and key limitations. Use the buying guide and FAQ to compare options and make a confident choice.
| Product | Lumens | Base | Best For |
|---|---|---|---|
| 150W LED Retrofit Module for Shoebox & Area Light | 20,250 | E39/E26 | High-traffic parking lots, wide-area lighting |
| 120W LED Retrofit Kit for Shoebox & Area Light | 16,200 | E39/E26 | Mid-sized exterior fixtures |
| OSTEK 75W/95W/115W Power Selectable Kit | 16,100 | E39 Mogul | Versatile power options, quick upgrades |
| OSTEK Shoebox Corn Light 75W/95W/115W | 16,100 | E39 Mogul | Flexible retrofits for varied outdoor fixtures |
| NUOGUAN 150W Shoebox Retrofit Kit (ETL) | 21,750 | E39 Mogul | Large-area parking and roadways |
150W LED Retrofit Module For Shoebox & Area Light
Best for: Large outdoor fixtures requiring high output. This module delivers up to 20,250 lumens with SMD 3030 LEDs and an 80+ CRI for clear color rendering. The dual-base design supports E39 and E26 bases, enabling upgrades without replacing housings. The included U-bracket supports horizontal or vertical mounting, expanding retrofit options. Limitation: installation requires ballast bypass for proper operation, which may involve re-wiring in some fixtures.
120W LED Retrofit Kit For Shoebox & Area Light
Best for: Mid-size storefronts or parking areas seeking solid performance with straightforward upgrades. The kit outputs up to 16,200 lumens and uses 80+ CRI for reliable color accuracy. It also features dual E39/E26 bases and a robust U-bracket for versatile mounting. Caution: confirm ballast bypass requirements and ensure voltage compatibility (AC100-277V) before installation.
OSTEK 75W/95W/115W Power Selectable Retrofit Kit
Best for: Flexible power options and quick upgrades in cobra head-style fixtures. This kit provides 75W/95W/115W selectable output with 5000K daylight, delivering 16,100 lumens and an 80+ CRI. It uses a rotatable E39 Mogul base for easy retrofits across various outdoor fixtures. Limitation: some users may require additional heat management in high-ambient-temperature environments.
OSTEK Shoebox Corn Light Bulb – 75W/95W/115W
Best for: Similar deployment as the previous OSTEK option, with a focus on flexibility for cobra head and shoebox retrofits. It offers 16,100 lumens, 5000K daylight, and an 80+ CRI. The rotatable E39 Mogul base aids compatibility with existing fixtures. Limitation: ensure the unit is compatible with your fixture’s ballast requirements and electrical setup.
NUOGUAN 150W Shoebox Retrofit Kit
Best for: High-output outdoor projects like parking lots and roadways. This kit produces up to 21,750 lumens with 145 lm/W efficiency and 80+ CRI at 5000K. It uses an E39 Mogul base and offers 100-277V operation with a sturdy 180° adjustable mounting stand. Limitation: higher-lumen models may require more substantial heat sinking and electrical planning to ensure longevity in hot climates.
Buying Guide
What should you consider when choosing a cobra head LED retrofit kit? Key factors include brightness, fixture compatibility, and installation complexity. If your goal is maximum light output for large areas, prioritize models with 20,000+ lumens and reliable thermal design. For upgrades to existing cobra head or street-light fixtures, look for dual-base options (E39/E26) to minimize housing changes. Check voltage range to match your site’s power supply (commonly AC100-277V or 200-480V). Confirm ballast bypass or removal requirements, as these affect wiring work and safety. Consider the color temperature (5000K for daylight-like clarity or 4000K for a warmer tone) and CRI (80+ for true color rendering).
Installation considerations: choose kits with adjustable mounting brackets to fit horizontal or vertical orientations. Heat management is crucial for long life; aluminum heat sinks and integrated cooling reduce operating temperatures. Review the warranty and ETL/DLC listings where applicable, as these often indicate reliability standards for outdoor use.
What else matters for cobra head retrofits?
- Ease of maintenance: power-separation designs can simplify future repairs.
- Compatibility with existing fixtures: verify base type, mounting hardware, and fixture dimensions.
- Energy savings potential: higher lumens at similar wattage typically yield better savings, but ensure the color and distribution meet your application needs.
FAQ
- What is a cobra head LED retrofit kit?
A retrofit kit designed to replace traditional cobra head street-light components, often for shoebox or area-light fixtures, providing LED brightness with adjustable mounting and compatible bases.
- Do these kits require ballast bypass?
Many modules require ballast bypass or removal to operate correctly; follow the manufacturer’s installation instructions to ensure safety and correct wiring.
- What base types are common?
Most kits use E39 (mogul) or E26 bases, enabling compatibility with a wide range of outdoor fixtures without full housing replacement.
- How do I choose between 100-277V and 200-480V options?
Choose the voltage range that matches your site supply. 100-277V covers many commercial sites, while 200-480V is common for larger installations or regional electrical standards.
- Is higher lumens always better?
More lumens improve coverage, but consider beam angle, mounting height, and pole spacing to avoid glare and ensure uniform illumination.
- Are these retrofits ETL or DLC listed?
Some options are ETL listed; verify listings with the product page to ensure suitability for your project and local incentives.