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Lopak II

  • Lopak II
  • Lopak II

A shallow low bay luminaire with the emphasis on easy installation and outstanding optical performance

  • Rapid single person installation using quick fix bracket and hinged gear tray
  • Integral auxiliary lamp option provides instant light during main lamp warm up
  • Optional timed ignitors to protect control gear and lamp

Materials and Finish

Body/Quick fix bracket/Gear tray: mild steel, white powder coated finish
Reflectors: satinbrite aluminium
Spring clip: zinc plated mild steel spring wire
Covers: toughened safety glass or polycarbonate

Installation and Mounting

Suitable for surface, trunking, chain, wire, conduit or BESA box mounting. All suspended options will automatically balance on two point fixings. For trunking or conduit fixing use Ø20mm BESA holes (213mm centres). For catenary mounting accessory kit 96010220 is required. Cable entry via Ø20mm holes. IP23 versions have an external cable gland fitted and cable entry is from the side only. Terminal block suitable for 4mm² cables. Halogen free internal wiring. Only suitable for use with tubular lamps.


To specify state:
A shallow discharge low bay luminaire for 250/400W HIT/HST lamps, with a choice of wide, asymmetric or narrow reflectors giving LOR>80%, detachable quick fix bracket and gear tray, 4mm² terminal block.
As Thorn Lopak II.

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Lopak II Standard ignitors

Lopak II Timed ignitors

Lopak II Wide reflector

Description   TypeSocketWt (kg)SAP Code
LOPAK II 1X250W HIT/HST BI WD IP20 L000ST/MTE408.0096236912
LOPAK II 1X400W HIT/HST BI WD IP20 L000ST/MTE408.6096236911

Lopak II Asymmetric reflector

Description   TypeSocketWt (kg)SAP Code
LOPAK II 1X250W HIT/HST BI AS IP20 L000ST/MTE408.0096236914
LOPAK II 1X400W HIT/HST BI AS IP20 L000ST/MTE408.6096236913

Lopak II Attachments

Description   Wt (kg)SAP Code
LOPAK II KIT ESH CL PC0.5096236939
LOPAK II KIT RRK0.2096236937
LOPAK II KIT WB0.5096236940
LOPAK II KIT WG L0.4096236941
LOPAK II KIT WG S0.4096236936