Product Overview
GE UltraMax 94135 Electronic Metal Halide Ballast — 70W ANSI M98/C98/M139/C139 120V Low Frequency
The GE UltraMax 94135 (GEMH70-MSLF-120) is a 70-watt low-frequency electronic HID ballast for commercial, industrial, and recessed metal halide lighting. Operating at 275Hz, it delivers 90% efficiency, Class A quiet operation (under 24dB), end-of-lamp-life protection, and thermal shutdown — suitable for offices, retail, warehouses, and architectural recessed fixtures.
Compatible Lamps (ANSI Codes)
- ANSI M98 / C98 — 70W Metal Halide quartz and ceramic
- ANSI M139 / C139 — 70W Metal Halide quartz and ceramic (alternate configuration)
Note: Not compatible with High Pressure Sodium (HPS) lamps or other ANSI codes. Always verify the ANSI designation on the lamp before installation.
Electrical Specifications
- Model: 94135 / GEMH70-MSLF-120
- Lamp wattage: 70W metal halide
- Input voltage: 120V AC (108–132V operating range, ±10%)
- Line frequency: 50/60Hz
- Ballast type: Electronic low-frequency (275Hz)
- System wattage (M98/C98 and M139/C139): 77W
- Nominal input current: 0.64A @ 120V
- Ballast factor: 1.0
- Ballast efficiency: 90%
- Power factor: ≥95%
- Crest factor: <1.5
- Total Harmonic Distortion (THD): <10%
- Minimum starting temperature: 5°F / -15°C
- Fuse rating: 2.5A
- Sound rating: Class A (<24 decibels)
Physical Specifications
- Dimensions: 5.51" L × 1.74" W × 1.18" H (140 × 44.2 × 30mm)
- Weight: 0.56 lbs
- Enclosure: Metal housing
- Wire exit: Side leads
- Mounting: Bracket slots — 5.24" × 1.13" pattern, 0.19" slots
- Maximum ambient temperature: 122°F (50°C)
- Maximum case temperature: 194°F (90°C)
- Maximum remote mounting distance: 8 feet from lamp
- Remote mounting wire gauge: 18 AWG minimum
Wire Lead Specifications
| Wire Color | Qty | Length | Function |
|---|---|---|---|
| White | 1 | 10" (254mm) | Neutral input |
| Black | 1 | 10" (254mm) | Line voltage input (hot) |
| Green | 1 | 10" (254mm) | Ground |
| Red | 1 | 10" (254mm) | Lamp connection |
| Brown | 1 | 10" (254mm) | Lamp connection |
Key Features
- 275Hz low-frequency operation extends lamp life and reduces electrode erosion
- End-of-lamp-life (EOL) protection automatically shuts down at lamp failure
- Thermal protection shuts down at 90°C to prevent overheating
- Integrated ignitor — no separate ignitor required
- UL 1439 rated for recessed fixture installation
- Cold weather starting down to 5°F (-15°C)
- RoHS compliant construction
Certifications
- UL 1029 Listed
- cUL Listed (Canada)
- Housing meets UL 1439 — suitable for recessed use
- RoHS compliant
- Class A sound rating (<24 dB)
Applications
Designed for recessed downlights, retail and showroom accent lighting, office lobbies, low-bay warehouse fixtures (12–20 ft), refrigerated display cases, parking garages, and museum or gallery installations requiring ceramic metal halide color quality.
Installation Notice
Must be installed by a qualified licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Refer to wiring diagram WD-eHID SLJ. Verify lamp ANSI code before installation. Minimum 18 AWG wire if extending leads. Do not block airflow around ballast housing.
