Sylvania 70W Metalarc Powerball Ceramic Metal Halide Lamp Part #: 64338

ANSI M139/M98/E | 4200K | 95 CRI | G12 Bi-Pin Base | 6800 Lumens

Technical Specifications

Product CodeMC70T6/U/G12/940

Ordering Code64338 (or 64967)

ANSI CodeM139/M98/E (also C139/C98/E)

Wattage70W

Operating Voltage91V

Lamp Current0.98 Amps

Lamp TypeT6 Ceramic Metal Halide (Clear)

Base TypeG12 Ceramic Bi-Pin (2-pin, 12mm center-to-center)

Color Temperature4200K (Cool White)

Color Rendering Index (CRI)95

Initial Lumen Output6,800 lumens

Luminous Efficacy97 lm/W

Maximum Overall Length (MOL)3.94 inches (100mm)

Light Center Length (LCL)2.36 inches (60mm)

Bulb Diameter0.71 inches (18mm) - T6

Rated Average Life15,000 hours

Burn PositionUniversal

Operating ModePulse Start

Chromaticity CoordinatesX: 0.432, Y: 0.396

UV ProtectionUV-Stop Quartz (reduced UV output)

OriginMade in Germany

Installation Requirements

Enclosed Fixtures Only: Rated for use in enclosed luminaires only (E-type classification)
Thermally Protected Ballast: Requires thermally protected ballast for safety
Pulse-Rated Sockets: Use with 4000V pulse-rated sockets only
Minimum Open-Circuit Voltage: 209V RMS (230V nominal) without ignitor; higher with ignitor
Overcurrent Protection: Circuit must include appropriate overcurrent protection
Ballast Compatibility: ANSI M139/M98/E or C139/C98/E compatible ballasts

Critical Safety Warning

WARNING: These lamps can cause serious skin burns and eye inflammation from shortwave ultraviolet radiation if the outer envelope is broken or punctured. Do not use where people will remain for more than a few minutes unless adequate shielding or other safety precautions are used. Certain lamps that will automatically extinguish when the outer envelope is broken or punctured are commercially available.

This lamp complies with FDA radiation performance standard 21 CFR Subchapter J (USA: 21 CFR 1040.30, Canada: SOR/DORS/80-381).

Mandatory Safety Precautions

Do not use where people remain for long periods without adequate UV shielding
Ensure protective shielding is installed and intact at all times
Consider auto-extinguishing lamps in high-risk areas
Fixture must be suitably enclosed (E-type rating)
Use only with pulse-rated sockets rated for 4000V

Recommended Applications

Ideal for display lighting, specialty retail, and architectural outdoor applications where high color rendering and crisp white light are required.

Retail display lighting (jewelry stores, galleries)
Architectural accent lighting
Outdoor facade lighting
Commercial downlights
Track lighting systems
General commercial illumination

Key Features & Benefits

Pulse Start Technology: Faster warm-up and better lumen maintenance than probe start lamps
Superior Color Rendering: 95 CRI for excellent color accuracy
Long Life: 15,000 hour rated life reduces maintenance costs
Stable Color: Reduced color temperature shift over lamp life (up to 400K less shift than standard lamps)
High Efficacy: 97 lumens per watt for energy efficiency
Universal Operation: Can be operated in any burn position
UV Protection: UV-Stop quartz construction for reduced UV output
Ceramic Arc Tube: Powerball technology for consistent performance

Related Products

Also available: 64969 (MC70T6/U/G12/830) - 3000K warm white version with 87 CRI and 7000 lumens for applications requiring warmer color temperature.