Philips 31509-3 DDL – 150W/20V MR16 Facetted Reflector Photo-Optic Halogen Lamp

Specifications

• Brand: Philips Focusline
• SKU / Order Code: PLB315093 / 14501
• ANSI Code: DDL
• LIF Code: —
• UPC: 923921419794
• Wattage: 150W
• Voltage: 20V
• Bulb Type: MR16 Facetted Reflector
• Base Type: GX5.3
• Color Temperature: 3150K
• CRI (Color Rendering Index): 100 — Perfect color accuracy
• Initial Lumens: —
• Rated Average Life: — hours
• Filament Type: CC-6
• Max Overall Length (MOL): 44.5mm
• Bulb Diameter (DIA): —
• Burn Position: —
• Fixture Requirement: Approved Enclosed Halogen Fixtures Only

Compatible Applications

• Microscopy & Laboratory
• Projection Systems (Slide, Film, Overhead)
• Stage, Studio & Disco Lighting

Cross-Reference Part Numbers

• Philips: 31509-3 DDL / SKU PLB315093
• GE / Tungsram: 43537 DDL
• Sylvania / Osram: 54660 DDL
• Ushio: JCR20V-150W (1000173)

About Philips Focusline Photo-Optic Halogen Lamps

Philips Focusline halogen lamps deliver high-quality, distortion-free light with precise filament positioning for optimal beam performance and consistent lumen output throughout rated life. Featuring quartz construction, full-spectrum halogen technology, and a CRI of 100, they are the trusted genuine replacement for OEM equipment in medical, projection, microscopy, and specialty lighting applications worldwide.

Important Safety & Installation Notes

• Enclosed Fixtures Only: Must be used in approved, fully enclosed halogen fixtures. Do not use in open or unshielded housings.
• No Bare Hands: Never touch the bulb envelope with bare skin. Oils cause hot spots leading to premature failure. Use clean gloves or a lint-free cloth.
• Do Not Exceed Rated Voltage: Operating above rated voltage dramatically shortens lamp life. Verify your equipment transformer output before installing.
• Extreme Heat Warning: This lamp operates at very high temperatures. Never touch when lit or recently switched off. Keep away from combustibles.
• Fragile: Quartz halogen lamps are sensitive to vibration and impact. Inspect the envelope for cracks before installation.