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1pcs Metal LED Warning Indicator Light Signal Lamp Pilot PIN 3-6 12-24 220V 6/8/10/12/16/19/22mm Power Waterproof IP65 - AliExpress
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Source HUSA 25mm Flat Head Push Surface Button Switch Ring LED 24v Power Symbol LED Customization Stainless Steel Push Button Switch on m.alibaba.com
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