Products Catalog

Specification

MASTER HPI ( -T)
MASTER HPI/ HPI Plus lamps are
single ended metal halide lamps
consisting of a quartz discharge
tube, containing high pressure
mercury and a mixture of metal
halides, which is housed in a hard
glass outer envelope, fitted with a
standard screw base.They are
available in either ovoid coated or
clear tubular versions.
They offer a unique combination
of a natural white colour
appearance, and high luminous
efficacy both initially and through
their long lives, giving many years
of reliable operation, and making
them an ideal lamp choice for
many applications.
Their high luminous efficacy
reduces the number of luminaires
needed, minimising installation and
energy costs, while the excellent
lumen maintenance and lamp life
ensures high maintained
illuminance levels and minimal
maintenance costs.The colour
point is on the black body locus
giving a natural white light colour
appearance.This combined with
good colour rendering makes it
easy to distinguish colours and
ensures a pleasant ambience and
user comfort.
The excellent colour stability
through life ensures good colour
uniformity over time even with
spot replacements. All lamps
require a suitable ballast and
ignitor ( except- S types) , and
must be housed in enclosed
luminaires ( except -P types) .
The MASTER HPI Plus lamps are
designed to operate on both
HPL and SON gear.
MASTER HPI Plus on HPL gear
When operated on HPL gear, the
MASTER HPI Plus lamps are light
technically and electrically retrofit
with existing HPI lamps.
MASTER HPI Plus on SON gear
When operated on SON gear,
the MASTER HPI Plus lamps run
at a higher lamp power, increasing
the luminous flux and the
luminous efficacy, reducing
investment and energy costs.
The colour temperature reduces,
which is more attractive for retail
applications.
SON gear compatibility allows
the possibility to replace
SON( Comfort) lamps, offering a
low cost opportunity to upgrade
from yellow to white light, and
also allows the replacement of
competitors metal halide lamps
which are typically operated on
SON gear.
The MASTER HPI Plus 400 W
BUS and MASTER HPI Plus 400
W BUS-P lamps are specially
designed self ( S) starting lamps
requiring no external ignitor,
saving on costs.This makes them
especially suitable for direct
replacement of Mercury ( HPL)
lamps.The MASTER HPI Plus 400
W BU-P and MASTER HPI Plus
400 W BUS-P lamps are specially
designed protected ( P) versions,
suitable for use in open
luminaires, i.e. no expensive front
glass is needed.The teflon coating
ensures that in the rare event of
the discharge tube shattering, the
glass is contained within the
teflon coating and can still be
easily removed.
The maximum permitted bulb
temperature for the “ P� teflon
coated types is 260° C, 90° C
lower than the normal
unprotected types, which have a
maximum permitted bulb
temperature of 350° C. Inherent
to metal halide technology, some
visible colour differences may
exist between individual lamps.To
minimise these differences the
burning position of the lamps
should be within + / - 5 degrees of
the nominal specified.
Applications
MASTER HPI-T/ HPI-T Plus
- sportslighting, floodlighting of
buildings and monuments,
arealighting e.g. harbour, building
sites, canopy lighting e.g. petrol
stations, and horticultural
lighting.
MASTER HPI Plus
- indoor high bay lighting, e.g.
industrial workshops, exhibition
halls, hypermarkets, shopping
malls, DIY stores, churches and
also the entrances of airports
and stations.