When I fitted them to my cooker hood they seem to be on permanently?

Sounds like capacitive coupling. Since LEDs need very little power to run any leakage current or capacitive charge may be enough to power them. Check if you have excess power cabling or any sort of switch that does not fully break contact (dimmer, control panel, sensor, etc).

How long would you expect these to last? Took delivery of two on 31/12/2021 and now (15/04/2022) one of them has stopped working. Is that about right?

They offer a 3m refund and 12m warranty. They are led so would expect them to last longer. Had mine in around 3-4m and still going ok. Usage time and conditions I am sure will make a difference. Get hold of seller.

Dicuno E14 5w Non Dimmable Led Bulbs | Desertcart New Zealand

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NZ$31

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Light smarter, live brighter — don’t get left in the dark!

VERSATILE FIT USE - Compact E14 SES base fits seamlessly in cooker hoods, refrigerators, chandeliers, and more—upgrade your lighting effortlessly.
WARM AMBIANCE ALWAYS - 3000K warm white light with 550 lumens creates a cozy, inviting atmosphere perfect for any space.
LONG LASTING DURABILITY - Ceramic base ensures excellent heat dissipation, extending bulb life up to 25,000 hours.
POWER PACKED EFFICIENCY - Consumes just 4W but shines like a 50W bulb, slashing your energy bills.
TRUE COLORS NO FLICKER - High CRI 85 delivers vivid, natural colors while protecting your eyes with stable, flicker-free lighting.

The DiCUNO E14 LED Bulb offers a powerful 4W LED output equivalent to a 50W halogen bulb, delivering 550 lumens of warm white (3000K) light. Designed with a durable ceramic base for superior heat dissipation, it ensures a long lifespan of up to 25,000 hours. Featuring a high color rendering index (CRI 85) and flicker-free technology, it provides vivid, comfortable lighting ideal for cooker hoods, refrigerators, and decorative fixtures. This energy-efficient bulb saves over 90% electricity and fits standard E14 SES sockets, making it a versatile, eco-friendly lighting upgrade.

Specifications

ASIN	B07KWRCXBC
Accepted Voltage Frequency	220 to 240 Volts and 50 Hertz
Average Life Span	25000 Hours
Beam Angle	360 Degrees
Best Sellers Rank	587 in Lighting ( See Top 100 in Lighting ) 137 in LED Bulbs
Brand Name	DiCUNO
Bulb Base	E14
Bulb Shape Size	T6
Color Rendering Index (CRI)	85.00
Color Temperature	3000 Kelvin
Colour	Warm White
Connectivity Technology	Infrared
Controller Type	Push Button
Country Of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (3,456)
EU Energy Efficiency Label	D
Incandescent Equivalent	50 Watts
Included Components	2 E14 LED bulbs
Indoor Outdoor Usage	Indoor
Is Electric	Yes
Item Dimensions W x H	15W x 67H millimetres
Item Shape	Bulb
Item Weight	40 Grams
Light Color	Warm White
Light Output Maximum	550 Lumens
Light Source Wattage	50 Watts
Light Type	LED
Manufacturer	DiCUNO
Manufacturer Part Number	UK-E14-75CMC-WW-2P
Material Type	Ceramic
Model Name	E14 LED Lampadina
Model Number	E14-5W-WW
Number of Items	2
Power Consumption	5 Watts
Power Source	AC mains electricity
Special Features	Cooker Hood 5W, Energy Efficient, Excellent Heat Dissipation, Reliable After-sales
Specific Uses	Cooker hoods, Refrigerators, Sewing machines, Desk lamps, Wall lamps, Chandeliers, Crystal lamps, Aquariums
Style Name	Warm White
Type of Bulb	LED
Unit Count	2.0 count
Voltage	230 Volts
Wattage	4 watts
White Brightness	550 Lumens

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NZ$31

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to New Zealand.

Secure transaction

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Perfect platform for hard-to-find items. Delivery was prompt.