Philips Master SonT Agro 400w HPS are the perfect solution for landscape and security applications where lower light levels are desired. Philips high pressure sodium lamps have superb energy savings and low maintenance costs. They also have a very long lamp life and excellent lumen maintenance.


  • Superior technology results in a long and reliable lifetime, high lumen maintenance and a reliable ignition over lifetime
  • High energy efficacy and absence of lead (Pb) makes this a sound environmental offer
  • High luminous efficacy makes this the most energy efficient HPS lamp



  • System Description: External Ignitor
  • Cap-Base: E40
  • Bulb: T46 [T 46mm]
  • Bulb Finish: Clear
  • Operating Position: any [Any or Universal (U)]
  • Life to 5% failures: 5000 h
  • Life to 20% failures: 9500 h
  • Life to 50% failures: 18000 hr


  • Color Code: 220 [CCT of 2000K]
  • Color Rendering Index: 25 (max) Ra8
  • Color Temperature: 2000K
  • Luminous Flux EM 25°C, Rated: 57000Lm
  • Lum Efficacy Rated EM 25°C: 132.5 Lm/W
  • Lumen Maintenance 2000h: 96%
  • Lumen Maintenance 4000h: %
  • Lumen Maintenance 5000h : 90%
  • Lumen Maintenance 10000h: 84%
  • Lumen Maintenance 20000h: %


  • Lamp Wattage: 400W
  • Lamp Wattage EM 25°C, Nominal: 400.0W
  • Lamp Wattage EM 25°C, Rated: 400.0W
  • Voltage: 230V
  • Lamp Voltage: 100V
  • Lamp Current EM: 3.9A
  • Ignition Time: 10 (max) s
  • Run-up time 90%: 5 (max) min
  • Re-ignition Time [sec] 160 (max) s



1x Son-T hps 400w lamp
SKU Philip_400
Barcode # 880923370998
Brand Philips
Shipping Weight 1.0000kg

Be The First To Review This Product!

Help other Melbourne Hydro users shop smarter by writing reviews for products you have purchased.

Write a product review

More From This Category

Optimus Digital HPS 600w lamp
Growlush  HPS 600W LAMP
Growlush HPS 250w lamp
Philips Son T HPS 600w lamp
Growlush HPS 400W LAMP
Growlush HPS 1000w lamp