Ecological Archives A024-191-A1
S. M. Pawson and M. K.-F. Bader. 2014. LED lighting increases the ecological impact of light pollution irrespective of color temperature. Ecological Applications 24:1561–1568. http://dx.doi.org/10.1890/14-0468.1
Appendix A. Photos of experimental setup and specifications of light emitting diode (LED) and high pressure sodium vapor (HPS) lamps used for all studies.
Photo A1. Paired 4000k 'white' LED (currently illuminated) and 'yellow' high pressure sodium lamp to its right (currently off) with an A2 sheet of Tanglefoot coated Mylar sheet attached to Perspex. Note the bird-scaring spikes to prevent bird strike as large numbers of birds are attracted to this particular site due to the Arhopalus ferus beetles attracted to lights. Photo Credit: Stephen Pawson, Scion.
Photo A2. LED Lamp attached to a 1.5 m y-post with an A3 sheet of Tanglefoot coated Mylar sheet attached to Perspex fixed 30 cm in front of the lamp. Photo Credit: Stephen Pawson, Scion.
Table A1. Description of lights, including manufacturer and energy output.
Light |
Manufacturer |
Color Temperature (Kelvin) |
Input current (A) |
Output |
Different color "white" LEDs |
|
|
|
|
0A008-EW827-Q2 STAR, INDUS 3UP XPE 2700K Q2 80CRI |
Cree |
2700 |
0.58 |
12 |
0A008-EW830-Q2 STAR, INDUS 3UP XPE 3000K 270L Q2 80 CRI |
Cree |
3000 |
0.5 |
12 |
0A008-EW835-Q2 STAR, INDUS 3UP XPE 3500K 270L Q4 75CRI |
Cree |
3500 |
0.42 |
12 |
0A008-EW740-Q4 STAR, INDUS 3UP XPE 4000K 315L Q4 75CRI |
Cree |
4000 |
0.6 |
12 |
0A008-EW750-Q4 STAR, INDUS 3UP XPE 5000K 315L Q4 75CRI |
Cree |
5000 |
0.45 |
12 |
07007-PW765-N STAR, ENDOR 3UP 65K 70CRI 315L |
Luxeon |
6500 |
0.35 |
12 |
Comparison with sodium lighting |
|
|
|
|
Light |
Manufacturer |
Color Temperature (Kelvin) |
Output(W) |
|
LED BY618P |
Phillips |
4000 |
200 |
|
High Pressure Sodium NH360lx |
Phillips |
N/A |
400 |
|
