Product Overview
Philips 28129-5 - MHC70/U/M/4K/ALTO – 70W | 4000K Cool White | CRI 92 | ANSI M143/E, M98/E | E26 Medium Screw
The Philips 28129-5 - MHC70/U/M/4K/ALTO is a 70W 4000K Cool White MasterColor Ceramic Metal Halide (CMH) lamp, CRI 92, E26 Medium Screw, 5,900 initial lumens, 20,000 hours rated life. Requires a compatible CMH ballast. Enclosed fixtures only. UPC: 46677281298. MPN: mhc70um4k-mastercolor.
Wattage 70W CMH/MH | Color Temp 4000K CRI 92 | ANSI Code M143/E, M98/ Ballast Code | Rated Life 20,000 Hours | Base E26 Medium |
Quick Specs
- Brand: Philips
- Series: Philips MasterColor
- Philips Order Code: 28129
- Manufacturer Part Number: mhc70um4k-mastercolor
- UPC: 46677281298
- Lamp Type: MasterColor Ceramic Metal Halide (CMH)
- Wattage: 70W
- Color Temperature: 4000K Cool White
- CRI: 92
- Initial Lumens: 5,900 lm
- Rated Average Life: 20,000 hours
- Base Type: E26 Medium Screw
- Overall Length / Diameter (MOL): 5.43"L x 2.125"D
- Start Type: Pulse-Start — requires pulse-start ballast and 4kV socket
- Mercury Content: Contains mercury — dispose per local regulations.
Product Overview
The Philips 28129-5 - MHC70/U/M/4K/ALTO is a 70W 4000K Cool White Philips MasterColor ceramic metal halide lamp. CMH ceramic arc tube technology delivers CRI 92 color rendering with superior color stability over lamp life for commercial, retail, and architectural high-CRI lighting in enclosed fixtures. Rated life: 20,000 hours.
Requires a compatible CMH ballast with thermal protection. Contains mercury — dispose per local regulations.
Applications
- Commercial and high-CRI lighting – Commercial, retail, and architectural high-cri lighting in enclosed fixtures.
- Retrofit and maintenance replacement – Verify ANSI code, wattage, and base type before ordering. Requires thermally protected CDM control gear.
Safety and Installation
- Thermally protected ballast required. Requires a compatible CMH ballast. Enclosed fixtures only.
- Allow warm-up time: 2–5 minutes for full output.
- Hot restrike: Allow 5–12 minutes after switching off before restarting.
- UV radiation: Use only in fixtures with UV-protective shielding.
- Mercury disposal: Contains mercury — dispose per local lamp recycling regulations.
Ordering Information
- Brand: Philips
- Series: Philips MasterColor
- Philips Order Code: 28129
- ANSI Code: M143/E, M98/E
- UPC: 46677281298
- Wattage: 70W
- Base: E26 Medium Screw
- Case quantities and bulk pricing: Contact ADL Supply for volume orders.
Compliance
- Contains mercury — dispose per local lamp recycling regulations.
- Verify RoHS and Prop 65 compliance with Philips specification sheet.
- HS Tariff Code: 8539.32.00.90
ADL Supply recommends confirming all specifications with the Philips product data sheet prior to installation.
