
843654121222 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $90.00 | Condition is New, Keystone KT-LED100HID-EX39-840-D 400W G2 100 W Watts 4000K EX39 Light Bulb Big, shipping cost = $20.00 | 50.0% |
![]() | $149.00 | Condition is New, Keystone KT-LED100HID-EX39-840-D 400W G2 100 W Watts 4000K EX39, shipping cost = $21.05 | 99.8% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $15.00 | Top Pick! Condition is New – Open box, Keystone KT-LED100HID-EX39-840-D 400W G2 100 W Watts 4000K EX39 Light Bulb Big, shipping cost = $28.95 | 100.0% |

Introducing the Keystone KT-LED100HID-EX39-840-D 400W LED G2 bulb, a high-performance and energy-efficient alternative to traditional HID (High-Intensity Discharge) bulbs. This bulb, identified by the model number 843654121222, boasts an impressive output of 4000K and 400 watts, delivering exceptional brightness and illumination.
The bulb's advanced LED technology utilizes 2 G2 watts to produce a brilliant, clear light with excellent color rendering. This makes it an excellent choice for various applications, including commercial and industrial settings, outdoor lighting, and even large residential spaces.
Measuring in at an industry-standard EX39 base and with a sleek, compact design, the KT-LED100HID-EX39-840-D is easy to install and replace, requiring minimal effort and tools. Its long lifespan, rated at an impressive 50,000 hours, significantly reduces maintenance requirements and lowers total cost of ownership.
One of the key benefits of this LED bulb is its energy efficiency. By consuming just 400 watts, it provides the same level of illumination as a 1000-watt HID bulb, resulting in substantial energy savings and reduced electricity bills. Furthermore, the bulb's advanced thermal management system ensures optimal performance and longevity, even in challenging environments.
The Keystone KT-LED100HID-EX39-840-D 400W LED G2 bulb is not only an investment in superior lighting performance but also an environmentally responsible choice. With its low power consumption and extended lifespan, it contributes to reducing carbon emissions and minimizing waste.
In summary, the Keystone KT-LED100HID-EX39-840-D 400W LED G2 bulb is a top-tier lighting solution for those seeking exceptional brightness, energy efficiency, and long-lasting performance. With its 4000K color temperature, 50,000-hour lifespan, and easy installation, this bulb is a must-have for any lighting setup, whether it be for commercial, industrial, or residential applications.
Pros and Cons of buying a Keystone 843654121222 KT-LED100HID-EX39-840-D 400w G2 4000K EX39 Light Bulb
Introduction:The Keystone 843654121222 KT-LED100HID-EX39-840-D is a 400w G2 4000K EX39 light bulb. Here are some pros and cons to help you make an informed decision about purchasing this product.
Pros:1. Energy Efficient: This LED light bulb consumes significantly less energy compared to traditional incandescent bulbs, making it a cost-effective and eco-friendly option.
2. Long Lifespan: The bulb has a long lifespan of up to 50,000 hours, which means fewer replacements over time.
3. Instant Lighting: Unlike CFL bulbs, LED bulbs provide instant lighting as soon as they are turned on.
4. Durable: LED bulbs are known for their durability and can withstand harsh environments, making them ideal for industrial and commercial applications.
5. Versatile: This bulb can be used in various applications, including streetlights, parking lots, warehouses, and outdoor signs.
Cons:1. Initial Cost: The upfront cost of LED bulbs is higher than traditional incandescent bulbs, but the energy savings over time make up for the difference.
2. Color Temperature: The bulb has a color temperature of 4000K, which may not be suitable for all applications. Some people prefer warmer or cooler temperatures.
3. Size: The bulb is larger than traditional light bulbs, which may require special fixtures or adapters.
Conclusion:In conclusion, the Keystone 843654121222 KT-LED100HID-EX39-840-D 400w G2 4000K EX39 Light Bulb offers several advantages, including energy efficiency, long lifespan, instant lighting, durability, and versatility. However, it also has some disadvantages, such as a higher initial cost, color temperature, and size. Ultimately, whether or not to purchase this bulb depends on your specific needs and preferences.
Recommendation:If you are looking for an energy-efficient, long-lasting, and durable light bulb for industrial or commercial applications, the Keystone 843654121222 KT-LED100HID-EX39-840-D 400w G2 4000K EX39 Light Bulb is an excellent choice. However, if you are on a tight budget or prefer a different color temperature, you may want to consider other options.
Details:
The ex39 size makes it suitable for various lighting applications, ensuring a consistent and reliable performance. With a power output of 400W and color temperature 4000k, this light bulb provides bright efficient illumination. The Keystone KT-LED100HID-EX39-840-D 400W g2 100 w watts 4000k ex39 light bulb is a high-quality lighting solution designed for industrial and commercial use.
specifications faclighting:
- brand: Keystone
- part type: Light Bulb
- upc: 843654121222
general faclighting:
- category: Business & Industrial > Maintenance Safety > Facility > Lights Lighting
returns faclighting:
- policy: no returns
seller faclighting:
- city: jefferson, wisconsin
- rating: 88.9%
- # reviews: 12
offer faclighting:
- best offers: true
- started: june 10, 2025
- sold #: 23
- options: ship-to-home
- prices: $15.00–$149.00
- item condition:
- New
- New – Open box
- in stock #: 3
- availability: in stock
payments faclighting:
- credit card: discover
- wallet: apple-pay
- other
shipping faclighting:
- carrier: usps
- transit: 4-13 days
- class: standard
- service: usps ground advantage
- type: calculated
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