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Double-ended HID bulb with RX7s ceramic ends, clear quartz tube

Philips

Philips CDM-TD 70W/830 70w RX7s 3000K Double Ended HID Bulb

SKU CH-S6XV-NVQQ6

A 70 W double-ended HID bulb with an RX7s base delivers 6500 lumens at 3000 K with a CRI of 82 and a 16000-hour life

  • Power rating70
  • Light output6500
  • Color temperature3000K
  • Lifespan (hours)16000
  • Color rendering82
  • Product typeHigh Intensity Discharge
  • Warm 3000K light creates inviting atmosphere
  • High 6500 lumen output delivers bright illumination
  • Excellent 82 CRI renders colours accurately
  • Long 16000-hour life reduces replacement frequency
  • Compact arc enables precise beam control

Philips CDM-TD 70W Double Ended HID Bulb

This Philips MasterColor CDM-TD lamp is a 70 watt high intensity discharge bulb designed for double ended fixtures with an RX7s base. It delivers a warm 3000K colour temperature and 6500 lumen output for retail display lighting, accent applications and commercial spaces needing consistent colour quality. The compact arc design allows precise optical control in compatible luminaires.

Upgrade from Quartz Metal Halide MHN-W-TD

The lamp serves as a direct retrofit for double ended quartz metal halide lamps such as MHN/W-TD types, reducing operating costs through higher efficacy and longer 16000 hour rated life. The jump is worth it when you need stable colour impression over the full lifetime and improved colour rendering with a CRI above 80 compared to older halide sources.

Installation Requires Ballast and Ignitor

CDM-TD lamps must operate with a compatible ballast and ignitor matched to the 70 watt ANSI C139/E specification. The burning position is restricted to horizontal ±45 degrees, so mounting outside this range will cause premature failure. A UV block quartz outer bulb is fitted, but the fixture must still provide appropriate enclosure for safety.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 69% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand namePhilips
Product typeHigh Intensity Discharge
Display
Light output6500
Power
Power rating70
More details
Color temperature3000K
Lifespan (hours)16000
Color rendering82

Questions about this item

What RX7s lampholder spacing does the 70 W CDM-TD require?

The double-ended RX7s base fits standard 70 W ceramic metal halide sockets; verify the fixture is rated for 70 W and the ANSI C139/E code before installing.

Which burning position is approved for this horizontal ±45° lamp?

Install the bulb horizontally within 45 degrees of level; operating outside this range shortens the 16 000-hour life and can cause early arc instability.

When should the UV-block quartz envelope be replaced?

Replace the lamp after 16 000 hours or when light output drops noticeably; the UV-block quartz does not degrade separately, so the whole bulb is changed at end of life.

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