YOUDIAN ST64 E27 LED Bulbs, 4W, Pack of 2

YOUDIAN ST64 E27 LED bulbs are a two-pack of 4W, non-dimmable lamps with an amber 2700 Kelvin light colour. Their E27 screw base and vintage shape suit decorative indoor fittings, while the claimed 570-lumen output may not satisfy buyers seeking brighter general lighting.

At a glance

The E27 screw fitting is described as suitable for existing compatible pendants, floor lamps and chandeliers.
The listing claims an amber 2700 Kelvin tone and 570-lumen maximum output.
The listing describes the bulbs as non-dimmable and intended for indoor use.

Price

£8.39Save 16%

Reference price: ~~£9.99~~

Price checked: 13 Nov 2026

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Often bought together

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Pros and cons

Pros

A two-bulb pack can outfit two compatible E27 fittings.
At 4W per bulb, the stated consumption is modest for decorative lighting.
The ST64 vintage form and amber colour are suited to visible decorative fittings.

Cons

Non-dimmable operation rules out use with dimmer controls.
The 4W output may be too low for buyers who need strong room lighting.

Technical specifications

24 specifications

Identity
Brand	YOUDIAN
Model	LED-ST64-4W-a
Bulb type	LED
Pack quantity	2

Light and appearance
Shape	ST64
Bulb shape size	T
Light colour	Amber
Colour temperature	2700 Kelvin
Maximum light output	570 Lumens
Incandescent equivalent	40 Watts
Specific use	Decoration
Usage	Indoor

Socket and electrical
Base	E27
Wattage	4 watts
Power consumption	4 Watts
Power configuration	AC
Voltage	220 Volts
Accepted voltage frequency	220 to 240 Volts and 50 Hertz
Dimming	Non-Dimmable

Physical details
Dimensions (W x H)	6.4W x 14H centimetres
Materials	Glass, Metal

Claimed lifespan
Average lifespan	30000 Hours

Connectivity and controls
Wireless connection listed	Infrared
Control methods listed	Push Button

What to know before buying

The listed voltage is given both as 220 Volts and as 220 to 240 Volts and 50 Hertz, so confirm compatibility with the intended fitting and local supply. Customer reports are mixed on brightness and durability, including reports of early failure and breakage at the contact point, despite the claimed 30000-hour average lifespan.

Who is it for?

A good fit for

People furnishing decorative indoor E27 fittings with a warm amber vintage look.
Buyers seeking a two-pack of low-wattage bulbs for ambient rather than high-output lighting.

Less suited to

Anyone who needs dimmable bulbs.
Buyers needing bright task or general-purpose room lighting.

YOUDIAN ST64 E27 LED Bulbs, 4W, Pack of 2 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 1,729 ratings

5 stars76%76%
4 stars14%14%
3 stars5%5%
2 stars2%2%
1 star3%3%

Customer feedback often describes the amber vintage appearance and warm room ambience positively, but brightness opinions vary. Some customers report reliable use, while others describe bulbs failing after a few months or breaking at the contact point, and views on whether the low wattage is adequate are mixed. This matters most if you need dependable long-term lighting or brighter room illumination. The listing states 4W and a 30000-hour average lifespan, but those specifications do not resolve the reported differences in experience.