{"product_id":"led-drivers-current-source-white-5","title":"TRIAC 40W 150-300mA Constant Current LED Driver - White","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\u003cp\u003eThe Power supplies Triac is a constant current LED driver delivering up to 40W output across an adjustable 150-300mA current range, designed for driving LED panels, downlights and strip installations where dimming control is required. The driver accepts AC 100-260V input and converts this to a stable DC constant current output, using TRIAC dimming protocols compatible with most standard UK leading-edge and trailing-edge dimmers.\u003c\/p\u003e\n\u003cp\u003eConstant current drivers regulate the current flowing to the LED rather than the voltage, which extends LED lifespan and maintains consistent brightness across the circuit. The 150-300mA adjustment range allows the driver to be paired with different LED configurations without replacing the unit, making it suitable for both residential retrofit projects and new commercial lighting installations where flexibility is needed. The TRIAC dimming capability allows smooth dimming down to low levels without flicker, provided a compatible dimmer is used on the mains input side.\u003c\/p\u003e\n\u003cp\u003eThe white plastic housing measures approximately 190mm long by 48mm wide by 28mm deep, with cable entry points at each end and knockout points on the sides for flexible cable routing. The IP20 rating confirms the driver is protected against solid objects larger than 12.5mm but offers no moisture ingress protection, so it must be installed in dry indoor locations only-inside ceiling voids, behind panels, or within junction boxes where it will not be exposed to damp conditions. The unit carries CE certification and is designed for installation by a qualified electrician in accordance with BS 7671 wiring regulations.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003ePower supplies Triac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Power\u003c\/td\u003e\n\u003ctd\u003e40W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e150-300mA (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003eAC 100-260V 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimming Protocol\u003c\/td\u003e\n\u003ctd\u003eTRIAC (leading-edge\/trailing-edge compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIP Rating\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (approx.)\u003c\/td\u003e\n\u003ctd\u003e190mm x 48mm x 28mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eCE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/PSL-TR40-150-300mA-DE_datasheet.pdf?v=1783054877\" target=\"_blank\" rel=\"noopener\"\u003eProduct manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\u003cp\u003e\u003cstrong\u003eWhat is constant current and why does it matter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConstant current drivers regulate the current (measured in milliamps) flowing to the LED rather than the voltage. This maintains consistent brightness and extends LED lifespan, as LEDs are current-driven devices. Voltage fluctuations on the mains supply do not affect the light output when a constant current driver is used.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this driver dimmable?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The Power supplies Triac uses TRIAC dimming protocols and is compatible with most standard UK leading-edge and trailing-edge dimmers. Dimming performance (minimum dim level, smoothness, absence of flicker) depends on the specific dimmer model used on the mains input side. We recommend testing with your chosen dimmer before final installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this be used in bathrooms or outdoor installations?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP20 rating means the driver is protected against solid objects larger than 12.5mm but offers no protection against moisture ingress. It must be installed in dry indoor locations only-ceiling voids, behind panels, inside junction boxes-where it will not be exposed to damp, condensation or water splash.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the output current adjusted?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe driver has a current adjustment control (typically a small potentiometer or DIP switch configuration) accessible once the cover is removed. The output can be set anywhere between 150mA and 300mA to match the requirements of the connected LED load. This adjustment should only be performed by a qualified electrician with the driver disconnected from the mains supply.\u003c\/p\u003e","brand":"Maytoni","offers":[{"title":"Default Title","offer_id":53218191343883,"sku":"PSL-TR40-150-300mA-DE","price":26.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/RENDER_PSL-TR40-150-300mA-DE_on_w_standard.jpg?v=1783061235","url":"https:\/\/niori.co.uk\/products\/led-drivers-current-source-white-5","provider":"Niori","version":"1.0","type":"link"}