OSRAM HALOSTAR STARLITE | 50W GY6.35 | 12V Clear Halogen

The Osram 64440S Halostar Starlite is a high-output, low-voltage halogen capsule designed for precision lighting in compact fixtures. Delivering a powerful 1,185 lumens, this 50W lamp features a GY6.35 bi-pin base and a clear T4 glass construction with an axial filament for superior directional light control. Engineered for durability and color accuracy, it provides a warm 2950K light with a perfect 100 CRI. The Starlite series is UV-filtered, fully dimmable, and approved for use in open luminaires (to IEC 60598-1), making it an essential choice for professional accenting, high-end retail displays, and under-cabinet applications.

Product Overview

The Osram 64440S is the professional standard for compact halogen illumination. Its specialized axial filament ensures that light is directed efficiently, reducing glare and maximizing the impact of your fixture's optics. Built with UV-STOP technology, it prevents the deterioration of plastic luminaire parts and protects sensitive illuminated objects from fading. This lamp is 100% dimmable, allowing for precise control of light levels to suit any environment. Because it is approved for open luminaires, it offers maximum design freedom for modern fixtures, while the Germany-made construction guarantees long-term reliability.

• Starlite Performance: Engineered for consistent light output and color quality throughout the lamp's life.
• High Lumen Density: Delivers exceptional brightness from an incredibly small footprint.
• No Mercury: Environmentally friendly halogen technology with safe disposal.
• Superior Rendering: A CRI of 100 ensures colors are vivid and accurately represented.

Technical Specifications

• Brand: Osram
• Model: 64440S (Halostar Starlite)
• Wattage: 50W
• Voltage: 12V
• Base: GY6.35 (Bi-Pin)
• Luminous Flux: 1,185 lm
• Color Temperature: 2950K (Warm White)
• CRI: 100 / Ra 100
• Rated Average Life: 2,000 Hours (Up to 4,000 in specific applications)
• Dimensions: 44mm (MOL) x 12mm (Diameter)
• Bulb Shape: T4 / Capsule
• ILCOS Code: HSGST/C/UB-50-12-GY6.35-12/30
• Origin: Germany

Installation & Maintenance Guide

• Transformer Required: This is a 12V low-voltage lamp; it must be connected to a compatible step-down transformer.
• Quartz Safety: Never touch the glass capsule with bare hands. Skin oils create hot spots that weaken the quartz and cause early failure. Use gloves or a lint-free cloth during installation.
• Base Fit: Ensure the GY6.35 pins are fully inserted into a clean, corrosion-free socket to prevent electrical arcing and heat buildup.
• Cooling: Always allow the lamp to cool completely before handling or cleaning.

Primary Applications

• Professional Retail: Track lighting and spot accents for high-end merchandise.
• Medical & Dental: Specialized exam lamps and equipment.
• Architectural: Built-in cabinetry, alcove lighting, and compact display cases.
• Landscape: Directional low-voltage floods and path accenting.