To be used where necessary to correct flash rate, recommended flash rate is 90 (+/-30) times per minute. * LED Indicator Resistor – 10ohm. * Set of 2. * ONLY for use with LED Amber Light – Indicator (LED-001 (http://barkbusters.shocktest.com.au/products/accessories-spare-parts/4921-LED-001/)/ Ref BIHR. 44400034). Article: Barkbusters LED Resistor 10ohm set of 2