Difference between revisions of "Philips MHN-TD"

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== Features ==
== Features ==
*One of the following:
*One of the following:
**Clear (for HPI-T and HPI-T Plus lamps)
*Clear bulb
**Diffuse internal ovoid coated bulb (all HPI Plus lamps)
*Internal high pressure quartz discharge tube
*Internal high pressure quartz discharge tube
*E40 base  
*RX7s base or FC2
*Requires matching mercury vapour or high pressure sodium ballast (Plus designation)
*Requires matching mercury vapour or high pressure sodium ballast
*Requires ignitors except on "S" designated 250W and 400W lamps
*Requires external ignitors
*Color rendering index Ra of 65 (most HPI-T lamps) and 69 (all HPI Plus lamps)
*Color rendering index Ra of 76 to 92
*Typical lifetime of 20.000 hours (most lamps) or 24.000 hours (only HPI-T lamps)
*Typical lifetime of 9.000 to 10.500 hours
*Luminous efficacy of 72 to 85 lumens/watt (highest on HPI-T lamps)
*Luminous efficacy of 72 to 85 lumens/watt (highest on HPI-T lamps)
*Cool white or daylight colour designation (4500 or 6700 K colour temperature)
*Warm white or Cool white colour designation (3000 or 4200 K colour temperature)
*One of the following (risk of early failure when operating in other positions):
*Horizontal operating position (risk of early failure when operating in other positions)
**Vertical operating position (most HPI Plus lamps)
**Horizontal operating position (all HPI-T lamps)


== Lamp control gear ==
== Lamp control gear ==