https://web.ledtronics.com/product_detail/BBL601-03-01
LED Beacon Bulb, Intermediate Screw E17, Green, 24Vdc
LED Light Bulbs, E17 Screw, For Beacons - Direct Incandescent Replacement - - 5290
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https://theswingdancecompany.co.uk/events/10wk-swingjive-course-green-intermediate-portsmouth-7-15pm-2/
10wk SwingJive Course Green Intermediate - Portsmouth 7.15pm - The Swing Dance Company
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