Table 4 Types of illumination used in light traps

LED

Very energy efficient, robust, many colours

Light is directional not 360 degrees

Gyekis et al. [79]

Chemical (Cyalume or glow stick)

Low failure rate, inexpensive, robust, many colours, 360 degrees of light

Light intensity is low and variable; light intensity may be affected by temperature

Barr [45], Holmes and O’Connor [72], Kissick [73], Kehayias et al. [84], Costello et al. [41]

Incandescent

Widely available, 360 degrees of light

Uses a lot of power, emits heat as well as light, fragile

Faber [71], Floyd et al. [39]

Fluorescent

Bright, energy efficient

Only one colour, fragile

Aiken [74], Kawaguchi et al. [33], Doherty [24]

Halogen

Very bright

Requires a lot of power, must be tethered to large battery, produces heat, fragile

Hernandez Jr and Shaw [64], Lindquist and Shaw [86]