SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/51nrW50kDSL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/51nrW50kDSL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/41R09RkdZJL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/41LOofGm0yL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/41jap3patYL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/41HvQSWhW-L._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/51k-Hk0FfCL._SL500_.jpg)
![SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]](https://m.media-amazon.com/images/I/51I0lmrd80L._SL500_.jpg)
Key features
- •Energy Efficient and Durable: This Low Pressure Sodium (LPS) light provides exceptional energy efficiency and long-lasting performance, reducing replacement frequency and energy costs.
- •Versatile Applications: Ideal for Thomas duplex safelights, darkroom safelights, studios, theaters, and outdoor lighting, including parking lots, public streets, highways, airports, and bridge underpasses.
- •Monochromatic Yellow Light: Emits a warm yellow monochromatic light that minimizes environmental disturbance, preserves the night sky, and provides an ambient, low-CRI glow for various uses.
- •Philips SOX Replacement: A perfect replacement for the Philips Low Pressure Sodium Lamp Master SOX-135W, ensuring compatibility and reliable performance for existing setups.
- •Specialized Use Cases: Commonly used in black fire experiments, black flame experiments, sky preservation, streetlights, garden lights, and other scientific or aesthetic applications requiring one-color, uniform lighting.
SOX 135W Low Pressure Sodium (LPS) Light Bulb - B22 - Monochromatic Yellow Light for Black Fire, Darkroom Safelight, Dark Sky Preservation - Philips SOX Lamp Replacement [Ballast not Included]
List Price: $273.54$246.19DEALYou Save: $27.35 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection







