778 Halogen Bulb - T2.5 Shape G4 Base 20W 6V

The 778 20W 6V halogen T2.5 lamp is designed for laboratory and precision instrument lighting. The G4 bi-pin base provides reliable installation in compatible fixtures.

This lamp provides the stable, continuous-spectrum output that analytical instruments like spectrophotometers and photometers require for accurate, repeatable measurements. Its halogen gas fill keeps the tungsten filament operating cleanly, preventing envelope darkening that would introduce drift in optical readings. It helps maintain consistent results across calibration cycles.

Key Features & Benefits

• G4 bi-pin base for secure installation in compatible fixtures.
• T2.5 bulb shape for broad fixture compatibility.
• Operates at 20W, 6V to match standard low-voltage circuits.

Product Specifications

• ANSI Code: 778
• Wattage: 20W
• Voltage: 6V
• Base Type: G4 2-PIN 4MM CENTER/CENTER
• Bulb Shape: T2.5
• Condition: Brand New

Common Applications

This halogen lamp is commonly used in:

• Spectrophotometer and UV-Vis analyzer light sources
• Chromatography detector illumination modules
• Automated clinical chemistry analyzers
• Microscope and optical measurement instruments
• Scientific research and analytical equipment

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.