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*Check the glass securing arrangement. See type ‘A’ or ‘B’
and check the diameter of the existing barrel
and confi rm
on order.
*Check that the LED heat sink (1) slide into the existing barrel and land on the glass retaining ring. Remove item and
check that the existing connecting ring screws onto the barrel. With these parts successfully checked for fi tting follow
the assembly procedures below.
*
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-Use silicone grease to lightly coat the heat sink (1 ), clamp ring (3) and sealing ‘O’ rings. Slide
the heat sink (1) into the barrel and tighten the knurled securing clamp ring (3) to secure the heat sink (1) into the body.
When the heat sink (1) cannot be rotated the clamp ring (3) has secured all in place. If this is not done it will cause
overheating of the LED and the LED could fail.
*Caution: do not operate lights unless totally submerged.
*
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The QT 80 retro is supplied with 2 meters of cable ready for connection into the IP 68 fused
enclosure also supplied.
*The fused enclosure connection terminal have a higher rating than 20 amps but we strongly advise a maximum supply
current to the enclosure of 20 amps.
*When the fused enclosure is used for distribution to the underwater lights the 10 amp fuse must be used to protect the
out-going supply cable to the lights.
*The LED power consumption for the Qt -80-retro is 40W. The integral driver has a supply voltage range 11-28vdc.
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11-28vdc Maximum current at 11vdc =
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20,000 hours @ 60° C
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