BenQ LK935 User Manual page 5

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17. Do not place this projector in any of the following environments.
- Space that is poorly ventilated or confined. Allow at least 50 cm clearance from walls and free flow of air
around the projector.
- Locations where temperatures may become excessively high, such as the inside of a car with all windows
rolled up.
- Locations where excessive humidity, dust, or cigarette smoke may contaminate optical components,
shorten the projector's life span and darken the image.
- Locations near fire alarms
- Locations with an ambient temperature above 40°C / 104°F
- Locations where the altitudes are higher than 3000 m (10000 feet).
18. To avoid damaging the DLP chips, do not direct a high-power laser beam onto the
projection lens.
Risk Group 2
1. According to the classification of
photobiological safety of light sources
and light source systems, this product is
Risk Group 2, IEC 62471-5:2015.
2. Possibly hazardous optical radiation
emitted from this product.
3. Do not stare at operating light source.
May be harmful to the eyes.
4. As with any bright source, do not stare
into the direct beam.
The projector's light source unit uses a laser.
• Notice is given to supervise children and to
never allow them to stare into the projector
beam at any distance from the projector.
• Notice is given to use caution when using
the remote control for starting the projector
while in front of the projection lens.
• Notice is given to the user to avoid the use
of optical aids such as binoculars or
telescopes inside the beam.
Laser Caution
This product belongs to CLASS 1 consumer
laser product and complies with IEC
60825-1:2014, EN 60825-1:2014/A11:2021 and
EN 50689:2021.
Above laser caution are located on the bottom
of this apparatus.
Caution – Use of controls or adjustments or
performance of procedures other than those
specified herein may result in hazardous
radiation exposure.
Important safety instructions
5

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