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T5 Specialty Fluorescent Tube Light
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Sylvania 21w T5 HE Seamless 4000k Specialty Fluorescent Tube Light

$46.99 $65.99

Osram Sylvania 21w T5 HE Seamless 4000k Specialty Fluorescent Tube Light

Pentron and Pentron HO Seamless T5 lamps offer continuous, smooth lines of light without the dark spots or shadows normally associated with applications that feature lamps or luminaires mounted end-to-end. The novel base configuration of these lamps eliminates the need to stagger lamps, allowing manufacturers to construct more compact luminaires, thus granting grater flexibility and smaller architectural features when creating linear lighting effects. With light output and dimming functionality similar to Osram Sylvania's standard Pentron lamps, the Pentron Seamless T5 lamps may be specified in conjunction with their linear counterparts for a consistent appearance and reliable compatibility with lighting controls equipment across an entire installation. pentron and Pentron HO Seamless lamps are electrically identical to their standar linear counterparts and may be operated on Quicktronic PROstart T5 and T5HO systems.

Key Features & Benefits:

  • Novel base design offers continuous lighting without shadows
  • Dimmable
  • Allows for sleek, compact luminaire designs
  • 20,000 hour average rated life 
  • 93% mean lumens
  • 4000k
  • 85 CRI
  • Energy savings with controllable lighting option
  • Compatible with T5 and T5HO ballasts
  • Quick 60+ System Warranty when paired with QUICKTRONIC ballasts


  • Canopy
  • Cove lighting
  • Pendant luminaires
  • Valence lighting

Abbreviation Name FP21/HE/SLS/840
Base Miniature Bi-Pin
Bulb Type Fluorescent Bulbs
Color Temperature (K) 4000K
Diameter (in) 0.63
Dimmable Compatibility Dimmable
Luminous Flux (LM) 1900
Maximum Overall Length (in) 34.724
Rated Life (Hours) 20000
Shape T5
Wattage (W) 21W

Item SKU: 20101