Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Thu, 26 Nov 2020 10:35:50 -0800 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 0AQIS7p1025331; Thu, 26 Nov 2020 13:28:18 -0500 Received: from outgoing-exchange-1.mit.edu (OUTGOING-EXCHANGE-1.MIT.EDU [18.9.28.15]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 0AQIREq8025258 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 26 Nov 2020 13:27:16 -0500 Received: from oc11exedge2.exchange.mit.edu (OC11EXEDGE2.EXCHANGE.MIT.EDU [18.9.3.18]) by outgoing-exchange-1.mit.edu (8.14.7/8.12.4) with ESMTP id 0AQIRCSf013491 for ; Thu, 26 Nov 2020 13:27:15 -0500 Received: from oc11expo20.exchange.mit.edu (18.9.4.51) by oc11exedge2.exchange.mit.edu (18.9.3.18) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Thu, 26 Nov 2020 13:26:59 -0500 Received: from oc11exhyb1.exchange.mit.edu (18.9.1.60) by oc11expo20.exchange.mit.edu (18.9.4.51) with Microsoft SMTP Server (TLS) id 15.0.1365.1; Thu, 26 Nov 2020 13:27:13 -0500 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (104.47.55.170) by oc11exhyb1.exchange.mit.edu (18.9.1.60) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Thu, 26 Nov 2020 13:27:13 -0500 Received: from BN6PR11CA0013.namprd11.prod.outlook.com (2603:10b6:405:2::23) by BN3PR01MB2067.prod.exchangelabs.com (2a01:111:e400:7bb5::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3589.21; Thu, 26 Nov 2020 18:27:11 +0000 Received: from BN8NAM11FT062.eop-nam11.prod.protection.outlook.com (2603:10b6:405:2:cafe::6b) by BN6PR11CA0013.outlook.office365.com (2603:10b6:405:2::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.20 via Frontend Transport; Thu, 26 Nov 2020 18:27:11 +0000 Received: from omta02.suddenlink.net (208.180.40.72) by BN8NAM11FT062.mail.protection.outlook.com (10.13.177.34) with Microsoft SMTP Server id 15.20.3611.25 via Frontend Transport; Thu, 26 Nov 2020 18:27:11 +0000 Received: from wb5agz ([47.217.109.16]) by dalofep02.suddenlink.net (InterMail vM.8.04.03.22.02 201-2389-100-169-20190213) with ESMTP id <20201126182710.SQEW17543.dalofep02.suddenlink.net@wb5agz>; Thu, 26 Nov 2020 12:27:10 -0600 Received: from martin by wb5agz with local (Exim 4.92) (envelope-from ) id 1kiLz4-0000aE-Dl; Thu, 26 Nov 2020 12:27:10 -0600 From: Martin McCormick To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Thu, 26 Nov 2020 10:27:10 -0800 Subject: Re: [OT] Hyperikon Retrofit LED Tubes Without Ballast and fluorescent lamps and TV! Thread-Topic: [OT] Hyperikon Retrofit LED Tubes Without Ballast and fluorescent lamps and TV! Thread-Index: AdbEIve2NDrsJckuT5uYY0U5dd80pw== Message-ID: References: <20201125221458.06a56fd6300ec2bfca6379d4e10ab8d2.7f57746529.wbe@email27.godaddy.com> List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: <20201125221458.06a56fd6300ec2bfca6379d4e10ab8d2.7f57746529.wbe@email27.godaddy.com> Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of suddenlink.net designates 208.180.40.72 as permitted sender) receiver=protection.outlook.com; client-ip=208.180.40.72; helo=omta02.suddenlink.net; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mitprod.onmicrosoft.com; s=selector2-mitprod-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=fFCA01Uu9V6hkZxbqb+HK8zLoj9rP4EG3vD2jtJ0FYM=; b=uutCDRc9rr7YII9Ul8UcGhsrbPhyR6336+CwrmuaFvakHBoea7eF68ihbKQVZcY5qq1MUW6mFtuxs6pw6TNGcT7686TmZ/qXe2fA6GxcOmlRsAgYQwZZm8emoA8nmpTuX1U/VOZDmP8mIgvhygJ4V79cKYzQYvdoWCH/Ya8oMDw= authentication-results: spf=pass (sender IP is 208.180.40.72) smtp.mailfrom=suddenlink.net; mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=bestguesspass action=none header.from=suddenlink.net; errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-topics: [OT] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 I did connect one of the tubes to 120 volts with the 2 pins shorted together on each end. It works fine with the current draw at 120 volts being 15 milliamps for 18 watts as advertised. it appears that 1 of the 4 pins at one end is unconnected. Putting 120 volts on the tube such that Neutral (white) connects to the two pins on one end and Hot (black) to the other 2 pins appears to be all that is necessary. If one lowers the voltage below 100 volts on the tube, the current starts to rise so no dimmers. The LED's do start to dim but this apparently confuses the regulator circuit and the current rises which doesn't sound like a good situation but I feel confident in wiring up a fixture with all 4 sockets parallel. Martin --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .