10-00328 REV C
2
2 GENERAL DESCRIPTION
The Q-LED II is designed to illuminate underwater scenes for video recording, and
general underwater illumination. It is designed to run continuously underwater.
The Q-LED II provides a maximum light output of 5400, a typical color temperature of
5600ºK, and consumes a maximum of 150 VA of power.
The housing, and all machined internal components of the Q-LED II are made of 6061-
T6 aluminum, which is hard anodized for protection from corrosion followed by an
external white enamel powder coating. Other external hardware, such as screws are
provided in stainless steel.
Unlike conventional lamps, the Q-LED II uses a solid state LED light array.
The LED light engine is secured in the housing via a special assembly. The forward
end of the Q-LED II is sealed with an o-ring between the housing and a deepwater-rated
window. The rear side of the Q-LED II is sealed by the connector o-ring. Another o-ring
seals the base to the main housing.
When operating the Q-LED II, a variable light intensity can be achieved by increasing or
decreasing the input voltage just like any other conventional filament type lamp.
Because the LED array requires a minimum driving voltage, dimming may not be linear
at low levels. Additionally, the light output can be adjusted via an AC phase control
dimmer if powered by AC power, or PWM if powered by DC power.
The Q-LED II can be used as a conventional ON/OFF lamp.
The electrical connection to the lamp is made via an underwater connector.
