How to write a technical description

Technical Description: Flashlight by Husky
Written By: Erin L. Bell


General Description

Definition: The flashlight by Husky is a handheld, portable, battery operated light source

Purpose: Useful tool to find something in an area with no light source or emergency situation
causing blackouts, or outdoor use

Overall Description: Portable, hand-sized flashlight weighing about 8 ounces with a diameter
of about 1 inch at the head of the flashlight, and about a half inch at the base of the flashlight,
basically cylindrical in shape, made almost completely of plastic



Main Sections:
Head- Casing to hold parts, lens, reflector, bulb, bulb seat
Base- Handle or case, switch, spring at bottom, copper strip, batteries
Figure 1- Line Drawing of parts.

Parts Description
Head:
The head of the flashlight consists of the lens, reflector, bulb, and bulb seat. It has a
casing to hold the parts together. When fully assembled, head is 1 inch long. The head
completes the flashlight by screwing into the body of the flashlight.

Bulb
Seat
Head
Reflector Bulb
Base
Strip/Spring
Switch
Casing
Lens: Keeps the bulb from getting dirty or damaged.
Reflector: Directs, or focuses light into the beam.
Bulb: Provides illumination or a light source; not plastic.
Bulb Seat: Holds bulb into place and creates an electrical connection.

Body:
The body of the Flashlight is about 6 inches. It consists of a case, switch, spring, copper
strip, and batteries. The outside of the body completely made of plastic but the interior
has parts made of plastic, metal, and copper.
Case: Holds the parts of the flashlight together.
Switch: Gives user the choice to switch the power off and on
Spring: Causes tension and pushes batteries and electricity to the switch
Copper Strip: The strip electricity travels along to the spring and switch
Batteries: The battery compartment holds two AA batteries together; power source
Shape:
Portable, small, cylindrical, or in the shape of a cone.
Connection:
Head screws clockwise to screw into the casing.


Operating Description
How to use:
1. Place batteries in flashlight
2. Direct light source to point of desire
3. Push switch to turn on flashlight

Maintenance:
To Replace batteries: unscrew head counterclockwise, dispose of batteries; replace head.
Limitations:
Lifespan of battery is short
Flashlight has limited range
Flashlight not waterproof or shock resistant

Warnings:
Don’t shine in eyes
Don’t let battery touch skin
Remove batteries between usage for corroded batteries