The Lakshmi Puja lamps are barely put away when the neighbour's balcony starts glowing, and suddenly Kali Puja is days away. This year Diwali and Kali Puja fall together on Sunday, 8 November 2026, so there is one big night to plan for. This guide covers the Diwali lights for home that actually work in a Kolkata flat: what to put on the balcony, the main door and the puja room, how many metres to buy, what they cost, and how to keep everything safe through a dewy November.
Quick answer: The best Diwali lights for home are a warm white rope light or 220V LED strip to outline the balcony and main door, a warm strip or small spotlight in the puja room, and fairy lights only for extra sparkle. Measure every edge, add 10% for corners, and choose outdoor-rated lights for anything in the open.
Diwali and Kali Puja 2026 dates: when to put up your lights
Put your outdoor Diwali lights up by Dhanteras, so the house is lit for all five nights.
| Day | Occasion | What to light |
|---|---|---|
| Friday, 6 November | Dhanteras | Main door and entrance |
| Saturday, 7 November | Bhoot Chaturdashi | 14 lamps (choddo prodip) around the house |
| Sunday, 8 November | Kali Puja and Diwali | Everything: balcony, terrace, puja room |
| 10 or 11 November | Bhai Phonta | Indoor and dining area |
Which Diwali lights are best: rope light, LED strip, fairy lights or serial light?
Use a rope light or 220V LED strip for long outlines, fairy lights for close-up sparkle, and a serial light for quick colour on grills. Most homes look best with two together: one line of light to draw the shape and one sparkle to fill it.
Think of it like a string of bel phool next to a brass lamp. The flowers are lovely for one evening. The lamp comes out of the cupboard every year. Fairy lights and serial lights are the flowers; a good rope light is the lamp.
| Light type | Best for | Look | Lasts beyond the festival? |
|---|---|---|---|
| Rope light | Balcony railings, door frames, terraces | One smooth glowing line | Many years if stored well |
| 220V LED strip | Door frames, short outdoor runs | Even line, no driver needed | Many years |
| 12V or 24V LED strip | Puja shelf, TV unit, coves | Hidden source, soft glow | Can become permanent lighting |
| Fairy lights | Mirrors, jars, curtains | Soft twinkle, close-up | One or two seasons |
| Serial light | Grills, windows | Coloured dots, often blinking | One season, sometimes two |
12 Diwali lights decoration ideas for your home
Pick two or three areas and do them properly instead of covering every surface. Good Diwali lights decoration is planned, not piled on.
Diwali lights for balcony and terrace
1. Outline the balcony railing with a rope light. This is the single strongest idea for a flat, because it draws the shape of your home for the whole street. Run it along the top rail and clip it every 30 cm so it does not sag.
For long runs, the R-5050/60 rope light comes as a 50 m roll for ₹2,500 in single colours and runs straight from the plug point.
2. Hang a curtain of fairy lights behind the grill. Drop vertical strands from the top of the grill, 15 to 20 cm apart. From inside they look like falling stars; from the road they fill the space the rope light frames.
3. Light the plants and the tulsi mancha. Lay a short warm strip at the base of the tulsi mancha or around large planters. A soft glow at floor level makes a balcony feel deeper and safer to walk on at night.
4. Mark the terrace parapet. In an old Shyambazar or Behala house with an open terrace, a glowing line along the parapet turns the roofline into a frame. Keep the plug point under cover and use outdoor Diwali lights for the open stretch.
Main door and entrance lighting
5. Frame the main door. A standard flat door is about 7 ft by 3.5 ft, so two sides and the top come to roughly 5.3 metres.
The 220V/240L strip light comes as a 10 m set for ₹1,200, enough for the door and the landing.
6. Light the alpona from the edge. Run a warm strip along the bottom of the door or the wall behind the alpona. The light falls across the colours and nobody steps on a wire.
7. Weave fairy lights into the toran. Twist a strand through the marigold toran. In the evening the flowers glow from inside, which looks far richer than a toran and a separate serial light fighting for attention.
8. Light the landing and stairs. In an apartment building, the landing outside your door is often the darkest spot on Diwali night, with visitors and crackers around. A short warm strip along the top step makes it safer and welcoming.
Puja room and indoor Diwali decoration lights
9. Put a gentle spotlight on the idol. A small warm spotlight aimed from the side, not straight on, gives the Kali or Lakshmi idol depth.
Our guide on the spotlight for a pooja room explains the angle and wattage.
10. Glow under the puja shelf. A warm LED strip under the front edge of the puja ledge lights the steps and the bhog plate with no visible bulb. It stays useful every day after the festival.
The 12V/180L strip in warm white costs ₹500 for a 5 m set; add a matching 12V driver, which is sold separately.
11. Swap the puja room bulb for a warm candle bulb. A warm white LED candle bulb gives the soft golden glow of a diya and can stay on all night.
The Diamond Candle Bulb comes in 4W (₹80) and 6W (₹90) warm white (2700K).
12. Turn the TV unit or cove amber. If you already have a cove or a strip behind the TV, switch it to amber or warm white for the week. It ties the indoor lighting to the diyas and costs nothing extra.
Kali Puja lighting ideas for Kolkata homes and paras
Kali Puja falls on Amavasya, the darkest night of the month, so light matters more than on any other festival night. Keep the colours warm and let the darkness do some of the work.
- Choddo prodip the modern way. On Bhoot Chaturdashi, families light 14 lamps around the house. Place warm white flame-tip candle bulbs (₹80 each) or short strip pieces at the same 14 spots: main door, stairs, kitchen, tulsi mancha and window sills.
- Red and amber behind the idol. A red or amber strip behind the Kali idol echoes the jaba flower; keep the face itself in warm white so it does not look flat.
- Para and club pandals. Clubs outlining a pandal often use rope lights for the frame and flood lights for the facade. Our flood lights suit open grounds and building fronts.
- Building facades. For a housing society or shop front, a few highlighters washing the wall look cleaner than dozens of serial strings.
Diwali lights price list: best lights to buy for each spot
Buy a 220V rope light or strip for outdoor outlines, because it runs straight from the plug with no driver. Buy a 12V or 24V strip with the correct driver for neat indoor lines.
| Diamond light | Length | Power | Offer price (MRP) | Best Diwali use |
|---|---|---|---|---|
| R-5050/60 rope light | 50 m roll | 220V, no driver | ₹2,500 (₹5,000); RGB ₹4,000 (₹8,000) | Balcony railings, terraces, building outlines |
| 220V/240L strip light | 10 m set | 220V, no driver | ₹1,200 (₹2,400) | Door frames, balconies, short outdoor runs |
| 12V/60L strip light | 5 m set | 12V, driver sold separately | ₹225 (₹450); RGB ₹1,000 (₹2,000) | Puja shelf, TV unit, showcases |
| 12V/180L strip light | 5 m set | 12V, driver sold separately | ₹500 (₹1,000) | Bright warm white under the puja ledge |
| 24V/576L COB RGB strip | 10 m set | 24V, driver sold separately | ₹2,000 (₹4,000) | Coves and feature walls that change colour |
| Candle Bulb | Single bulb | 4W or 6W | ₹80 to ₹90 (₹160 to ₹180) | Puja room, chandeliers |
| Candle Bulb with Tail | Single bulb | 4W or 6W | ₹80 to ₹90 (₹160 to ₹180) | Choddo prodip spots, diya-like flame look |
Prices are our festive offer prices as on 27 October 2026 and can change; the product page always shows the live price.
Sample Diwali lights budget for a Kolkata flat
| Area | What to buy | Cost |
|---|---|---|
| Balcony railing and main door (up to 10 m) | One 220V/240L strip, warm white | ₹1,200 |
| Puja shelf (5 m) | One 12V/180L strip, warm white, plus a 12V driver | ₹500 plus driver |
| Choddo prodip (14 spots) | 14 warm white candle bulbs with tail, 4W | ₹1,120 |
| Whole building or terrace outline (up to 50 m) | One R-5050/60 rope light roll | ₹2,500 |
A flat that does the balcony, puja shelf and choddo prodip spends under ₹3,000 on lights that come out again every year.
How many metres of rope light do you need for Diwali?
Measure every edge in feet, multiply by 0.3 to get metres, add the distance to the plug point, then add 10% for corners. Buy the next standard length up, never the exact figure.
It works like buying fabric for a blouse: the tailor always asks for a little extra for seams.
Worked example for a balcony in a Behala two-bedroom flat:
- Railing: 12 ft. Top and bottom rail make 24 ft.
- 24 ft is about 7.3 metres.
- Plug point 1.5 metres away: 8.8 metres.
- Add 10%: about 9.7 metres.
- Buy a 10 metre length.
A mains rope light or strip can only be cut at the marks printed on it, so plan the run so the cut falls at a corner.
Are Diwali lights waterproof? Safety for outdoor Diwali lights in November
Not all Diwali lights are waterproof. For an open balcony or terrace, choose outdoor or IP65-rated lights and keep every plug and joint dry. Kolkata November nights are not rainy, but heavy dew settles on railings after midnight, and that moisture finds any loose joint.
- Check the rating on the box. IP stands for Ingress Protection; IP65 means the light keeps out dust and water jets.
- Keep joints under cover. Tape every connection and keep it under a ledge or in a plastic box, never on the floor.
- One extension board per area. Never chain one board into another; use one with its own switch and fuse.
- Never plug a 12V strip straight into the wall. Low-voltage strips need the correct LED driver; only 220V lights run straight from mains.
- Keep lights away from crackers. On Kali Puja night, move fairy light curtains away from where children burst crackers.
How much electricity do Diwali lights consume?
LED Diwali lights use very little power, so a week of decoration adds little to the bill. The formula: watts × hours per day × days ÷ 1,000 = units used.
A 20 watt balcony set running 6 hours a night for 10 nights uses 20 × 6 × 10 ÷ 1,000 = 1.2 units. Multiply by the rate on your CESC or WBSEDCL bill for the real cost. Think of watts like a taxi meter: an LED set ticks over slowly, the old filament strings ran it much faster.
Diwali lights that keep working after the festival
The smartest Diwali decoration lights are the ones you do not pack away. A warm strip under the puja shelf or around the door frame becomes everyday lighting from 9 November. A good rope light comes out again for Jagaddhatri Puja, Christmas and the winter wedding season.
A family in Salt Lake might fix a 5 metre warm strip under the puja ledge for Diwali and simply leave it there: one evening of fitting, a soft glow for the bhog plate every day of the year.
Shop the Lights for Diwali Guests
Decoration lights make the house glow from the street. These fittings make the rooms inside look their best when guests arrive for Bhai Phonta, and they stay useful all year.
- A brighter, glare-free ceiling: COB downlights for the false ceiling, with anti-glare and 3-in-1 colour options.
- A warm glow along the ceiling edge or TV wall: LED profile lights that hide the strip behind a smooth diffuser.
- Soft light beside the sofa and the puja corner: decorative LED wall lights in white, black and gold finishes.
- An inner room or bathroom with no window: an artificial skylight that brings a blue-sky ceiling indoors.
Where to buy Diwali lights in Kolkata
You can buy rope lights, LED strips and candle bulbs at our showroom at 11A, Esplanade East, above K.C. Das, Kolkata 700069, or order them online. Bring your balcony and door measurements and the team will help you work out lengths and colours.
Browse the full LED strip and rope lights collection to compare 220V, 12V and RGB options.
Diamond Electrical Industries has made lighting for Kolkata homes since 1958. Choose your lights this week, and everything will be up and tested well before 8 November.
Frequently Asked Questions about Diwali Lights
What are the best Diwali lights for home?
The best Diwali lights for home are a warm white rope light or 220V LED strip for outlining the balcony and main door, a warm LED strip or candle bulb for the puja room, and fairy lights for extra sparkle indoors. Rope lights and strips last many seasons, while fairy and serial lights usually last one or two.
What is the price of Diwali lights?
At Diamond Electrical Industries, a 50 m LED rope light roll is ₹2,500 in single colours, a 10 m 220V LED strip is ₹1,200, a 5 m 12V strip starts at ₹225 and LED candle bulbs start at ₹80. These are festive offer prices as on 27 October 2026; the product page shows the live price.
Are Diwali lights waterproof?
Not all Diwali lights are waterproof. Many indoor fairy and serial lights must stay under cover. For an open balcony or terrace, choose outdoor or IP65-rated lights, keep plugs and joints dry, and switch them off when you go out. In Kolkata, November dew is the main risk, not rain.
What are Diwali lights called in English?
Diwali lights are usually called string lights, fairy lights or serial lights in English. A serial light is a string of small coloured bulbs, fairy lights are tiny LEDs on thin wire, and a rope light is a continuous line of LEDs inside a flexible tube.
Which is better for a balcony, rope light or fairy lights?
A rope light is better for outlining a balcony because it is sturdier and shows one smooth line from the street. Fairy lights are better for filling the space, such as a curtain behind the grill. Using both together gives the fullest Diwali lights decoration.
How many metres of rope light do I need for my balcony?
Measure each edge in feet, multiply by 0.3 for metres, add the distance to the plug point and then 10% extra. A 12 ft balcony railing outlined on the top and bottom rail needs about 10 metres of rope light.
How much electricity do Diwali lights consume?
LED Diwali lights use very little electricity. A 20 watt set running 6 hours a night for 10 nights uses about 1.2 units. Multiply watts by hours and days, divide by 1,000, then multiply by the rate on your CESC or WBSEDCL bill.
What colour Diwali lights look best?
Warm white and amber look best for most homes because they match the glow of diyas and flatter brass, marigolds and alpona. Use colour, such as red or RGB, as an accent behind an idol or in a cove rather than on the whole balcony.
Where can I buy Diwali lights in Kolkata?
You can buy rope lights, LED strip lights and candle bulbs for Diwali at the Diamond Electrical Industries showroom at 11A, Esplanade East, above K.C. Das, Kolkata 700069, or online at dewdiamond.com. Bring your measurements so the team can help you choose the right length.
