GentleSpace gen2 – the new standard in industrial high-bay lighting, combining functionality with design

GentleSpace gen2

GentleSpace gen2

  • GentleSpace gen2 – the new standard in industrial high-bay lighting, combining functionality with design

    • Extremely favorable total cost of ownership
    • Customizable for high diversity of applications
    • Proven reliability


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Product family information

With the introduction of the GentleSpace LED luminaire in 2011, Philips achieved a breakthrough in high-bay lighting, offering a huge reduction in power consumption, a long service life and an innovative design. Now, with GentleSpace gen2, Philips is setting a new standard in the market, with an improved total cost of ownership, even in extreme conditions. In addition, a high diversity of options are available to ensure an ideal solution for your application like optics, coatings and enabling the use of a central emergency grid (PSED).


Improved efficiency of up to 143 lm/W
DALI-addressable for even more savings
Extremely long lifetime of up to 70,000 hours
Improved thermal management to withstand ambient temperatures up to 45 °C
Iconic design for architectural appeal
Small surface makes it possible to meet ESFR sprinkler requirements
Fully compliant with EN-12464-1; low glare rating and color rendering of ≥ 80
Suitable for new builds or point-for-point replacement of HPI 250 W, HPL 400 W or HPI 400 W, reducing energy consumption by at least 45%


Industrial halls and warehouses
Exhibition halls
Food production area and Sports hall
High temperature engineering area
Product family details
  • BY470P (13,000 lm version)
  • BY471P (17,000 and 25,000 lm versions)
Light source
  • Philips Fortimo LED Line 1R
  • BY470P: 95 W
  • BY471P: 126 and 180 W
Luminous flux
  • GRN versions: 13,000, 17,000 and 25,000 lm
  • ECO versions: 13,000, 17,000, 25,000 and 32,000 lm
  • XT versions: 17,000 and 25,000 lm
Correlated Colour Temperature
  • 4,000 K
Colour Rendering Index
  • > 80
Median useful life L70B50
  • 70,000 hours
Median useful life L80B50
  • 50,000 hours
  • For XT version: 100,000 hours at Ta 45°
  • 50,000 hours at Ta 60°
Median useful life L90B50
  • 25,000 hours
Average ambient temperature
  • +25ºC
  • XT version with Ta 60°
Operating temperature range
  • -30 to +45ºC
  • For XT version up to Ta +60ºC
  • Built-in (self-ballasted LED module)
Mains voltage
  • 220-240 V AC/50-60 Hz
  • 186-250 V DC
  • Dimmable (PSD)
Control system input
  • DALI (25,000 lm version requires 2 DALI addresses)
  • The 25,000 and 30,000 versions require 2 drivers
  • Housing: die-cast aluminium
  • Optic: PMMA
  • Cover: thermally toughened clear glass
  • Silver grey (SI), white (WH)
  • Other RAL colours available on request
  • Narrow beam (NB)
  • Medium beam (MB)
  • Wide beam (WB)
  • High-rack (HRO)
  • Asymmetrical mirror axis angle 50° (A50)
Optical cover
  • Glass cover (tempered, clear); optional PC or PMMA cover
  • Wall mounting
  • Installation without removing lamps and optic/cover
  • Y-grippel
  • Mounting bracket (optional)
  • External IP65 electrical connector
  • Mounting brackets (BY470Z, BY471Z)
  • Wall-mounting bracket
  • The lifetime of up to 100,000 hours (XT version) is valid throughout the whole temperature range of -30ºC to +45ºC
  • External IP65 connector and Y-grippel suspension set are included
  • Overheat protection in XT version to ensure long maintenance-free life