Philips 31592-9 EKE 150W 21V GX5.3 Halogen MR16 Projection Lamp - ANSI EKE, 3250K, 900 Lumens

The Philips EKE (31592-9 / 13629) is a high-performance 150W 21V halogen MR16 projection lamp (Focusline series) designed for professional projection, medical, scientific, and optical systems. It delivers intense, full-spectrum light with a CRI of 100 and 3250K color temperature for exceptional color accuracy comparable to natural daylight. The quartz-UV open-face design with precise C-6 filament alignment ensures distortion-free output, consistent lumen maintenance, and reliable performance in demanding applications. Ideal for retrofit in slide projectors, microscopes, fiber optics, endoscopes, and other precision illumination equipment.

Technical Specifications

• ANSI Code: EKE
• Wattage: 150W
• Voltage: 21V (low-voltage, requires transformer)
• Base: GX5.3 Bi-pin
• Filament: C-6
• Color Temperature: 3250K (Warm White / Halogen Projection)
• CRI (Color Rendering Index): 100
• Initial Lumens: 900 lm
• Rated Average Life: 200 hours
• Burning Position: S90 (any position)
• Dimensions: MOL 44.45 mm × DIA 50.67 mm (1.75" × 2.0")
• Ordering Code: 31592-9
• UPC: 8711500410733
• Bulb Type: MR16 Quartz-UV Open Face Projection Lamp

Product Features & Benefits

• Full-Spectrum Light: CRI 100 matches natural sunlight for the best possible color rendering and accuracy in projection/medical/scientific use.
• Consistent Performance: High lumen output with minimal depreciation throughout rated life.
• Precise Filament Positioning: Ensures distortion-free beam and optimal light distribution in optical systems.
• Quartz-UV Construction: High transmission for maximum intensity; open-face design for efficient heat dissipation.
• Warm, Comfortable Light: 3250K halogen glow provides inviting illumination with excellent detail.
• Reliable Retrofit Solution: Proven durability and easy replacement in existing GX5.3-based projectors and instruments.

Recommended Applications

• Slide projectors and overhead projectors
• Microscope and endoscope illumination
• Fiber optic light sources in medical and dental equipment
• Scientific and laboratory optical systems
• Precision projection and display devices
• Specialized task lighting requiring high-intensity, accurate color

Safety & Compliance Information

Caution

• Risk of Burn: Allow lamp and fixture to cool completely before handling; turn power off before installation/removal.
• Risk of Shattering: Dispose of in a closed container; do not use if outer envelope is scratched, cracked, or broken.

Warning

• Risk of Electric Shock: Disconnect power before inspection, installation, or replacement.
• Risk of Fire: Keep away from combustible materials; use only in fixtures rated for this lamp.
• Pressurized Lamp: Unexpected rupture may cause injury, fire, or property damage; avoid direct contact with water, liquids, or metal; do not exceed 110% of rated voltage.

Professional-grade halogen projection lamp for critical optical and medical applications—offers unmatched color fidelity and intensity. Due to short life and high heat, consider modern LED MR16/GX5.3 equivalents for significantly longer life (10,000+ hours), cooler operation, lower energy use, and similar or better color performance in compatible systems.