Preface This is the fourth edition of C22.2 No. 184, Solid-state lighting controls, one of a series of Standards issued by the Canadian Standards Association under Part II of the Canadian Electrical Code. This edition supersedes the previous editions, published in 2012, 1988, and 1986. For general information on Standards of the Canadian Electrical Code, Part II, see the Preface to CSA C22.2 No. 0, General requirements - Canadian Electrical Code, Part II. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 This Standard applies to solid-state lighting controls rated at 600 V and less, with or without an integral switching (disconnecting) device, designed to be used in circuits a) for the control of incandescent lamps; and b) for the control of fluorescent, HID, ballasted, and similar lamps intended for installation in accordance with the Rules of the Canadian Electrical Code, Part I. 1.2 This Standard applies to controls intended for a) lighting controls without integral switching (disconnecting control); b) devices used as a table-mounted unit to which portable luminaires can be temporarily connected; c) devices permanently installed in the supply line of a lamp; d) direct plug-in devices; and e) other similar applications. Note: Refer to CSA C22.2 No. 184.1 for flush-mounted dimmers and similar devices. 1.3 This Standard does not apply to variable resistor and variable transformer-type controls. 1.4 Control devices containing phase cut dimmers may be optionally tested and marked in accordance with standard NEMA SSL 7A. 1.5 In this Standard, \"shall\" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; \"should\" is used to express a recommendation or that which is advised but not required; and \"may\" is used to express an option or that which is permissible within the limits of the standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application. 1.6 The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.