text.skipToContent text.skipToNavigation


by Chalmit Lighting 

The 261 well-glass is a high light output luminaire ideally suitable for demanding and hazardous environments. It accommodates high pressure discharge lamps up to 400W. External reflectors are available making the 261 suitable for medium and high bay applications. The luminaire is made from corrosion resistant aluminium alloy and toughened boro-silicate glass using stainless steel fastenings and has an IP66/67 rating. It features a large side mounted increased safety terminal chamber eliminating the need for flameproof cable glands and allowing for flush mounting.

  • Installation to gas groups IIA and IIB.
  • Ex e terminal chamber.
  • Anchor chain on glass cover assembly.
  • Low temperature applications to -40˚C - The 261 is suitable for low temperature operation (-40°C) with high pressure sodium lamps.
  • ATEX Certified and GOST R Approved.
Click the 'Contact Us' link above to get in touch with us and discuss how the 261 well-glass luminaire could work for you.

Product Details


ATEX Classification Group II Category 2 G
Application Zone 1, 2 and in Gas Groups IIA and IIB
Lamp Type HPS, Metal Halide or Mercury Vapour
Material Aluminium alloy LM6 to BS 1490 (AC44100); All fastenings A4 stainless steel; Toughened glass dome globe.
Operating Temperature Range Celcius -40°C to +50°C
Style HB/LB/Wellglass
Type HB/LB/Wellglass

Certifications and Compliance

Certified Listed
  • ATEX
  • IEC
  • IP66
  • IP67
Hazardous Rating(s) Zone 1 & 2
Industry Standard(s)
  • EN 60079-10-1
  • EN 60079-14