■ FIGURE 3. Tilt light flashlight.
■ FIGURE 6. Compact emergency
exception of the battery holder(s) —
were anchored using hot melt glue.
A tilt light flashlight constructed
from the three white LED cluster
attached to a 4” x 2” x 1-1/4” project
box is shown in Figure 3. A one watt,
33 ohm dropping resistor was used
with a nine volt battery to provide the
power supply (Figure 4). This unit can
be used like a conventional flashlight
by rotating the project box 180
■ FIGURE 9. Wood curio box used
to make tilt light.
BY J. RONALD EYTON
■ FIGURE 4. Innards of flashlight.
■ FIGURE 5. Tilt light flashlight
rotated 180 degrees to on position.
■ FIGURE 7. Innards of
emergency tilt light.
degrees (Figure 5) to turn it on and
then tilting the box up and down 45
degrees for sweeping an area without
shutting it off. A smaller version of this
unit (utilizing a project box 3” x 2” x
1-1/8”) without a reflector is shown in
Figure 6. The four white LED cluster
was glued to the outside of the box
and powered by a nine volt battery
wired in series with a one watt, 270
ohm dropping resistor (Figure 7) and
■ FIGURE 10. Interior of curio box
with lid open and turned on.
■ FIGURE 8. Compact emergency
tilt light in on position.
creates a ton of illumination when
used as a compact emergency light
Figure 9 is a photo of a curio box
used to make a tilt light by wiring the
LEDs and the switch into the lid so
that it turns on when opened. The
blue three LED cluster was coupled to
two nine volt batteries wired in series,
using a one watt, 330 ohm dropping
resistor to provide the light source
■ FIGURE 11. Dump truck tilt light.
October 2007 49