
QK773NX Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $17.54 | Condition is New, Stepwell Light Bulb For 1973-1980 Mercedes 450SL 1979 1974 1975 1976 QK773NX, FREE SHIPPING | 99.2% |

Introducing the Philips QK773nx Stepwell Light Bulb, a perfect solution for Mercedes-Benz 450SL owners with vehicles manufactured between 1973 and 1980, including the models from 1974, 1975, 1976, and 1979. This bulb is specifically designed to fit in the stepwell lighting system of these classic cars.
The Philips QK773nx Stepwell Light Bulb boasts a classic, vibrant halogen filament that delivers a warm and inviting light, making it an ideal choice for those who appreciate the traditional look and feel of their vehicle's lighting system. Its clear glass casing allows the light to illuminate the area around the car's steps and doors evenly, creating a safe and practical lighting solution.
This bulb is engineered with durability in mind, featuring a robust construction that can withstand the rigors of regular use. The glass casing is shock-resistant, ensuring that the bulb remains intact even when subjected to minor bumps or vibrations. Additionally, the filament is encased in a protective quartz envelope, which not only extends the bulb's life but also shields it from potential damage caused by external factors.
The Philips QK773nx Stepwell Light Bulb is also energy-efficient, drawing a relatively low power of 55 watts. This not only helps reduce your energy consumption but also minimizes the strain on your car's electrical system. Moreover, the bulb offers a long lifespan of approximately 1,000 hours, ensuring that you can enjoy your classic Mercedes-Benz's authentic lighting for a more extended period.
In summary, the Philips QK773nx Stepwell Light Bulb is a high-quality, reliable, and energy-efficient lighting solution designed exclusively for Mercedes-Benz 450SL models manufactured between 1973 and 1980. Its warm, inviting light, robust construction, and long lifespan make it an excellent investment for enthusiasts seeking to enhance the look and functionality of their classic cars.
Philips QK773nx Stepwell Light Bulb for 1973-1980 Mercedes 450SL: A Comprehensive Analysis
The Philips QK773nx Stepwell Light Bulb is a popular choice for those looking to replace the original lighting in their classic Mercedes 450SL models from 1973 to 1980. This bulb is specifically designed to fit the stepwell and interior lighting systems. In this analysis, we will discuss the pros and cons of purchasing this bulb, followed by a concluding recommendation.
Pros:1. Period-correct: The Philips QK773nx Stepwell Light Bulb is a faithful reproduction of the original bulbs used in Mercedes 450SL models from 1973 to 1980.
2. Long Lasting: This bulb boasts an impressive lifespan of up to 10,000 hours, significantly longer than the original bulbs, reducing the need for frequent replacements.
3. Energy Efficient: The bulb is energy efficient, consuming only 1.5 watts, which can help save on electricity costs.
4. Easy Installation: The bulb is a direct replacement for the original, making installation simple and straightforward.
5. Consistent Brightness: The bulb provides consistent, even brightness, enhancing the interior and stepwell lighting in the vehicle.
Cons:1. Cost: Although the bulb's long lifespan and energy efficiency can help offset the initial cost, it may still be more expensive than a standard replacement bulb.
2. Fragile Filament: Due to its design, the filament in the bulb is more fragile than modern bulbs, making it susceptible to damage during installation or handling.
3. Limited Availability: This bulb may not be readily available in all regions or automotive parts stores, requiring online purchases or special orders.
Conclusion:The Philips QK773nx Stepwell Light Bulb is an excellent investment for those seeking a period-correct, long-lasting, and energy-efficient lighting solution for their classic Mercedes 450SL models from 1973 to 1980. While it comes with a higher initial cost and some fragility concerns, its benefits outweigh the drawbacks, making it a recommended choice for those who prioritize authenticity, longevity, and energy efficiency in their vehicle's lighting system.
Details:
Always change in pairs. Vehicle fitment information, vehicle, 1973 1980 Mercedes 450SL. 12 month warranty.
specifications interiorswoop:
- for makes: Mercedes
- for years: 1973–1980
- brand: Philips
- mpn: Qk773nx
- part type: Light Bulb
- info: Longerlife Twin Blister Pack Compare To Original; Bulb Op.
- years: 1979 1973 1974 1975 1976 1977 1978 1980 79 73 74 75 76 77 78 80
- fitment: Mercedes 450sl Stepwell Light Bulb
- cs-sku: 400
seller interiorswoop:
- rating: 95.1%
- city: oakland, california
- # reviews: 90735
offer interiorswoop:
- in stock #: 1
- options: ship-to-home
- sold #: 18
- started: may 26, 2025
- availability: in stock
- price: $17.54
- item condition: New
shipping interiorswoop:
- carrier: fedex
- class: standard
- service: fedex ground or fedex home delivery
- transit: 4-9 days
- type: fixed
payments interiorswoop:
- other
- credit card: mastercard
- wallet: apple-pay
returns interiorswoop:
- policy: returns accepted
- paid by: buyer
- time: 30 days
general interiorswoop:
- category: Auto Parts > Car Truck > Interior Accessories
