LED drivers and controls: how to choose the right one
Choose an LED driver by what it powers, then match its output and control type. Start with a strip, downlight, strip controller or automatic sensor. Range numbers here are from 12 November 2026.
Which LED driver do I need: constant voltage or constant current?
Choose constant voltage for a matching low-voltage strip, or constant current when the light requires a fixed current.
LEDs run on low-voltage DC. A driver turns the mains supply into the steady voltage or current they need. Controllers and sensors decide when and how the light comes on.
- Constant voltage, or CV: fixed output volts for strips and lights marked 12V or 24V. This is the largest group, with 263 products.
- Constant current, or CC: fixed output current, shown in mA, for downlights, panels and spotlights. There are 152 products.
Never swap CV and CC. A wrong current can burn the LEDs. Browse LED drivers and controls or read the strip buying guide before choosing.
Where output voltage is stated, 24V and 12V are most common, followed by 48V. Match the strip voltage exactly. As a starting point, allow up to about 5 metres from a 12V strip driver, or about 10 metres for 24V. Longer runs need power fed at more than one point.
Magnetic track uses its own 48V drivers, chosen with the range: see which magnetic track to choose.
Which driver suits indoor, outdoor or narrow spaces?
Choose the IP rating for the location, then a box, slim linear or round shape that fits the space.
IP20 drivers belong in dry, ventilated indoor places. Keep air around them and never seal them in insulation. For outdoor or damp locations, look for a stated rating such as IP67, or a dry, covered box. About a quarter of stated ratings in this range are IP67.
- Slim linear: a long, narrow shape for profiles, cabinets and narrow false ceilings.
- Box: a broader shape for most other places where space allows.
- Round: a circular housing; check its fit before choosing it.
Check product page dimensions and confirm the space available with your electrician.
How do I choose LED strip driver watts or constant current output?
For CV, allow spare watt capacity; for CC, match the light's required mA exactly and check its output voltage range.
Add strip watts per metre multiplied by metres, including every run on the driver. A good starting point is a load of about 80 percent of the driver's rating or less. Divide total load by 0.8 to find the minimum driver watts.
For example, about 4 metres of strip at 12 W per metre uses 48 W. Dividing 48 by 0.8 gives 60 W, so choose a 60 W driver or larger.
Among 407 drivers with wattage data, the groups are:
- Up to 20 W: 77 products.
- 20 to 50 W: 81 products.
- 50 to 100 W: 117 products.
- 100 to 200 W: 82 products.
- Over 200 W: 50 products.
For CC output current, options vary, check the product page. Watts alone cannot confirm whether a driver fits a light.
What do you need for an LED driver replacement?
Before any replacement, we need a clear old-label photo, or its exact output voltage range, mA and dimming type.
This applies even to lights bought from us. Two lights with the same watts can need different drivers. Mains wiring must be handled by a qualified electrician; ask them to photograph the old driver's label when they take it out. Do not open the light or test an unknown driver.
Send the details on WhatsApp: +91 98991 88821. Include whether the light uses a wall dimmer, remote, phone app or control system.
Which dimmable LED driver works with my controls?
Choose a driver with the exact dimming type your dimmer or control system supports.
- Triac: works with a matching wall dimmer.
- 0/1-10V: needs a control wire to a dimmer or controller.
- DALI: needs a DALI system installed by an electrician or home automation installer. DT6 serves one-colour white light; DT8 serves tunable white.
- Remote or phone app: choose a light, driver and control arrangement stated to work together.
Always tell us the dimming type. “Dimmable”, “smart” or “has a remote” is not enough. Changing only the driver will not make a fixed-colour light tunable. Dimming options vary, check the product page.
Which LED strip controller should I buy?
Match the controller to the strip kind and voltage, then choose how you want to operate it.
- One colour: a matching controller adjusts brightness without changing the light colour.
- Tunable white: changes white light from warm to cool.
- RGB: choose this for a strip that mixes coloured light.
- RGBW: for coloured light with a separate white channel.
- RGB+CCT: for coloured light and adjustable warm-to-cool white.
- Pixel: for a compatible strip with running or changing patterns along its length.
Use the LED strip set builder to list the driver, controller and parts for each run. Then browse strip controllers. Match the controller to the strip kind and voltage.
Which sensor switch suits my room or staircase?
Choose a sensor by what should trigger the light: movement, small movements, daylight or a door opening.
- Motion: switches on when someone moves past and off after a set time; useful on staircases.
- Presence: notices smaller movements, useful in offices, toilets and store rooms.
- Day and night: switches on at dusk and off at dawn.
- Door: lights a wardrobe or cabinet when the door opens.
- Staircase controller: lights steps one after another.
Check range and delay settings where listed. A day and night feature keeps a motion light off in daylight. Browse sensor switches by the action you need.
How much does an LED driver or lighting control cost in India?
The median listed price is about ₹2,350, with price rising with watts, dimming and a higher IP rating.
These bands cover drivers and controls on 12 November 2026. They use each product's lowest variant price, including GST.
The product page shows the current price. Warranty depends on the model.
What should I check before buying an LED driver or control?
Confirm the load, output, location, fit and control type before ordering.
- Identify whether you need CV, CC, a strip controller or a sensor.
- Match output volts for CV; match mA and output voltage range for CC.
- Allow spare watt capacity for a CV driver.
- Check IP rating, ventilation and space for the housing.
- State the exact dimming type and strip kind.
- For replacement, send the old label details before choosing.
- Confirm current price and model-specific warranty; arrange a qualified electrician for mains wiring.
Questions and answers
Start with the light's label whenever you are unsure which driver or controller to order.
Is an SMPS for LED strip the same as an LED strip driver?
It may describe the strip's power supply. Confirm that its output voltage matches the strip and its watt capacity covers the load.
Can a 12V LED driver replace a 24V power supply for LED strip?
No. The output voltage must match the strip; these are different supplies.
Can I replace a constant current LED driver by matching watts?
No. Send the old label photo, or exact output voltage range, mA and dimming type, even for our own lights.
Will a DALI driver work with a Triac wall dimmer?
Choose the exact dimming method supported by both parts. Do not assume compatibility from the word “dimmable”.
Can any RGB controller run my LED strip?
No. Match the strip kind and voltage. RGB, RGBW, tunable white and pixel strips need their matching controls.
Which motion sensor switch suits a wardrobe?
A door sensor suits lighting triggered by the door opening. Choose motion sensing when movement should trigger the light.
Is dimming worth it for a living room?
Yes, if you want brighter light for daily tasks and softer light when relaxing. Check that the complete light and its dimming controls are listed to work together, and tell us the dimming type. An electrician should check and fit the setup.
Can I dim an existing profile light that feels too bright?
Possibly, if the light supports dimming and the dimmable driver and dimmer suit it and each other. Send a clear old-driver label photo, or its exact output rating including volts range and mA, on WhatsApp before choosing, and state the dimming type. An electrician should check and fit it.
Will a motion sensor turn lights off while I sit still?
Yes, a motion sensor may switch off when it stops detecting movement. A presence sensor can detect smaller movements, but may still miss someone completely still; check the listed range and delay. An electrician should check and fit the sensor.
Which controller works with RGB or running LED strips?
Choose a controller that matches the strip type and voltage; RGB and pixel or running strips need different controls. Send a clear photo of the strip and its label on WhatsApp before choosing, so our team can confirm compatibility. An electrician should check and fit it.
Jainsons Lights was founded in 1978 and has four showrooms in Delhi. Browse drivers and controls, plan with the LED strip set builder, or visit our showrooms.