SOX-E 18w Low Pressure Sodium Lamp Kit

The 18W SOX-E Lamp Kit includes everything needed to build a complete low-pressure sodium (SOX) lighting system in one convenient package. Each kit contains a matched 18W SOX-E lamp, electronic ballast, and BY22d lamp socket, eliminating the guesswork of sourcing compatible components separately.

At the heart of the system is the 18W SOX-E lamp, which produces a pure 589nm monochromatic yellow light. Unlike conventional light sources, this narrow-spectrum output removes nearly all color information from a scene, creating the distinctive visual effect that has made SOX lighting valuable for scientific research, optical experiments, darkroom applications, and creative installations.

The included electronic ballast provides reliable ignition and stable operation without requiring an external ignitor, while the BY22d lamp socket ensures a secure mechanical fit and dependable electrical connection. Together, these components form a complete, purpose-built system designed for consistent performance and straightforward installation.

Whether you're conducting black-fire experiments, restoring an existing SOX lighting setup, or exploring the unique visual properties of monochromatic light, this kit provides a simple and reliable way to get started with SOX technology.

Please note that wiring is not included. Designed for use with 18W SOX-E systems only.

Black-fire and flame visualization experiments
Physics demonstrations and educational laboratories
Scientific research and optical testing
Monochromatic lighting studies and color perception experiments
Darkroom and Thomas Duplex Super Safelight applications
Art installations and gallery exhibitions
Film, theater, and immersive environments
Restoration and maintenance of SOX lighting systems

1. 18W SOX LAMP:
Electrical Specifications:
Nominal Wattage: 18w
Rated Wattage: 18w
Lamp Current (EM) (Nom): 0.33A
Voltage (Nom): 57v

Lifespan:
Average Lifespan: 8,000 hrs
Life to 8% Failures (Nom): 6,000 hrs
Life to 30% Failures (Nom): 8,000 hrs
Life to 50% Failures (Nom): 12,000 hrs

Temperatures:
Maximum Permitted outer bulb temperature: 150 °C / 302°F
Maximum Permitted base edge temperature: 150 °C / 302°F

Base: BY22D

Energy Efficiency Class: A+

Operating Position:
H110 [ Hanging +/-110D or Base Up (BU)]

2. 18W ELECTRONIC BALLAST
Rated Lamp Power on SOX (W): 18
Input Current (Nom) (A): 0.10
Input Voltage (V): 110 to 240
Minimum Mains Voltage Operation (Min) (V): 180
Ignition Voltage (Max) (KV): 1.0
Lamp Power Tolerance: -10%/+10%
Dimming: No
Ingress Protection: IP20
T-Ambient (Max) (°C): 50
T-Case Lifetime (Nom) (°C): 75

3. Lamp Socket:
Ceramic Base
Cap-Base: BY22
Voltage (Nom): 500 v
Current (Nom): 4 A
Bayonet Base Temperature (Max) 170 °C
Impulse withstand category: III
Contact Wire Cross Section (mm2): 0.70-2.50

Luminous Flux: 1800 lm
Luminance: 10 cd/cm²
Luminous Efficacy: 100 lm/W

Unit Count: 1 Count of SOX-E 18W Lamp, 1 Count of 18W Electronic Ballast, 1 Count of Lamp Socket

1. 18W SOX Lamp
Max Diameter: 53mm /2.09 in
Max Length: 216mm / 8.50 in

2. 18W ELECTRONIC BALLAST
Dimension (LxWxH) : Approx. 215 x 42 x 30mm /8.46 × 1.65 × 1.18 in
Mounting Hole spacing length: 207mm / 8.15 in
Weight: 200g / 7.05 oz

3. LAMP SOCKET
Max Diameter: 55mm
Max Length: 55mm

UKCA, RoHS, CE

In stock in the U.S. and ready to ship worldwide. Every order is carefully inspected and securely packaged before shipment.

Free shipping to the U.S. and Canada. Free shipping to Oceania on orders over $299 USD. Shipping charges for other destinations are calculated at checkout. Tracking is included with every order.

30-day returns on all eligible orders. U.S. returns are free, while international customers are responsible for return shipping costs.

International orders may be subject to import duties, taxes, or customs fees. These charges are the responsibility of the customer and are not included in the purchase price or shipping cost.

All SOX lamp kits are backed by a 1-year limited warranty against manufacturing defects. If you experience an issue with your order, please contact our team and we'll work with you to find a solution.

Q: What is included in the 18W SOX-E Lamp Kit?
A: The kit includes one 18W SOX-E lamp, one 18W electronic ballast, and one BY22d lamp socket. These components are matched to work together as a complete SOX lighting system.

Q: Do I need to purchase a ballast or socket separately?
A: No. The ballast and socket are included with the kit, eliminating the need to source compatible components individually. Please note that wiring is not included

Q: Do I need a separate ignitor?
A: No. The included electronic ballast provides ignition functionality and does not require an external ignitor.

Q: Is this kit compatible with both 120V and 240V electrical systems?
A: Yes. The included ballast supports 110–240V mains voltage. Depending on the production batch, some ballasts may have diagrams or markings on the casing that reference 220–240V as the nominal or optimal operating voltage. However, these ballasts are designed to operate on both 110–120V and 220–240V AC power systems. Customers in the U.S. can use them without issue, and no voltage converter is required.

Q: Is this kit suitable for black-fire experiments?
A: Yes. The 18W SOX-E lamp produces a pure 589nm monochromatic light source, making it ideal for black-fire demonstrations, flame visualization, and optical experiments.