CFL SQUARE 28W/835 4-PIN GR10Q

CFL SQUARE 28W/835 4-PIN GR10Q

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CFL SQUARE 28W/835
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CFL SQUARE 28W/835 4-PIN GR10Q

Electrical data  
Nominal voltage 220 V
Rated wattage 28.00 W
Nominal wattage 28.00 W
Nominal current 0.32 A
Photometrical data  
Nominal luminous flux 2050 lm
Luminous flux at 25 °C 2050 lm
Rated luminous flux 2050 lm
Rated color temperature 3500 K
Color rendering index Ra ≥80
Rated LLMF at 4,000 h 0.88
Rated LLMF at 6,000 h 0.85
Rated LLMF at 8,000 h 0.82
Rated LLMF at 12,000 h 0.78
Light color (designation) LUMILUX White
Color temperature 3500 K
Luminous flux 2050 lm
Color rendering index Ra ≥80
Dimensions & weight  
Overall length 205.0 mm
Length 205.0 mm 
Length acc. to IEC standard 205 mm
Outer bulb T12
Maximum diameter 17.0 mm
Lifespan  
Nominal lamp life time 13000 h
Rated lamp life time 13000 h
Service life 7500 h 
Rated lamp survival factor at 2,000 h 0.99
Rated lamp survival factor at 4,000 h 0.99
Rated lamp survival factor at 6,000 h 0.95
Rated lamp survival factor at 8,000 h 0.88
Rated lamp survival factor at 12,000 h 0.59
Operation mode LLMF/LSF HF
Lifespan 13000 h
Additional product data  
Base (standard designation) GR10q
Mercury content 2.5 mg
Capabilities  
Suitable for indoor Yes
Certificates & standards  
Energy consumption 31 kWh/1000h
Energy efficiency class A

Product benefits

  • Square shape provides uniform distribution of light
  • No shadows at either end and no dark patches
  • Very economical
  • Extremely low profile
  • Good quality of light
  • Long service life

Areas of application

  • Low-profile wall and ceiling luminaires
  • Public buildings, reception areas, offices, corridors, etc.
  • Shops
  • Supermarkets and department stores
  • Hotels, restaurants

Product features

  • Short and compact pin-base lamp with double-turn tubes
  • Single-ended four-pin plug-in GR10q base
  • Color rendering index Ra: ≥ 80