Samsung SP-H800 - Manual (Page 13)

Preparation
Projector and Accessories
13
The remote control is effective within a 30°
angle 7~10m from the projector.
CAUTION
■ Keep used batteries away from children and
dispose of them properly.
■ Do not use new and used batteries together.
Replace two batteries at the same time.
■ Remove batteries when the projector is not
used for long periods of time.
Press the LIGHT button of the remote
controller for five seconds. The remote
control buttons are lit for about 5 seconds
and turn off automatically.
LIGHT
Allowable range & angle of receiving the remote control signal
Using Remote Control in Dark Place (LIGHT)