LED Drivers

A constant voltage driver holds a fixed voltage, while a constant current driver holds a fixed current and lets the voltage vary. The 12DC40 is a 12V constant voltage driver suitable for LED flex installations. Modules rated in milliamps need a current driver such as the 1W350DA, a 350mA unit working over 18-35V.

Add up the wattage of everything on the driver and choose a model whose maximum output is above that total. For a 24V tape run drawing around 60W, the 24DC75 gives up to 75W. The 24DC150M goes to 150W and the 24DC200M to 200W, and both have adjustable output voltage.

Yes, with a dimmable driver and a trailing edge dimmer. The 12DC25D, 12DC50D and 24DC100D are dimmable with most trailing edge dimmers, and dimmer compatibility should be checked before installation. The 350ND19W is non-dimmable, and the 24VDCA offers no dimming, so neither is suitable for a dimmer circuit.

It is a driver made to work with the DALI standard used by lighting control systems. The 1050DALI45W is compatible with DALI2 for advanced control systems, gives up to 45W and has DIP switches for currents from 350mA to 1050mA. It is rated IP20 for indoor use and has open circuit, short circuit and overload protection.

Yes, if it is a weatherproof model such as the 12DCIP40, 24DCIP40, 24DCIP60P or 24DCIP100A, which are IP67 rated. The 24DCIP60P is Class II and suits wet or outdoor locations, and the 12DCIP40 comes with 300mm mains and low voltage cables. IP20 drivers such as the 24VDCA are for indoor use.

Use an RGB controller between the power supply and the tape. The LYYT 153.797UK has 3 button control for static colours and internal sequence programs, with a DC jack input and a 4-pin RGB output. The 153.772UK in-line amplifier extends 5V-24V RGBW tape, and the 153.771UK is a repeater amplifier for RGB tape.

Use snap-fit connectors or flexible links. LYYT flexible links such as the 156.148UK come in packs of 5, each a 150mm wire with a snap connector at each end, and can be cut in half to reach a supply with screw terminals. The 156.655UK solderless connectors join two lengths of 10mm single colour COB strip.

Use the LYYT rope light power cable or controller made for it. The 153.562UK power cable is 1.5m long and can power up to 100m of LYYT rope light with a static output. The 153.564UK controller gives 8 chase and flash settings from an IP44 housing and powers up to 50m of 3-wire rope light.

A gear tray is the LED module that fits into a separate luminaire casing. The Knightsbridge TNXT is adjustable to 10W, 15W or 20W and to 3000K, 4000K or 5700K, with push-fit terminals. The TNXTMW adds a microwave sensor and the TNXTP a daylight sensor, and the casing is sold separately.