The pack of 10 amber ST64 E27 4W LED filament bulbs recreates the 14.3 cm Edison tube with deliberately reduced output: 360 lumens per bulb, designed for setups where you add light sources without adding glare.

Specifications per bulb

Each bulb uses 4W to produce 360 lumens, or 90 lm/W, equivalent to a 40W incandescent bulb, with a 360° beam angle. Deep amber warm white, Ra 80 color rendering. The ST64 tube has the same dimensions as the 8W model: 6.4 cm in diameter and 14.3 cm tall. Energy class F, IP20 rating, operating range from -20°C to +40°C, estimated lifespan of 25,000 hours. Non-dimmable; do not connect to a dimmer.

Sizing a multi-point installation

On a string light, multi-arm pendant, or countertop light bar, ten 720-lumen bulbs often flood the space. The 4W version keeps the same tube silhouette while halving the output, for a total of 3,600 lumens across ten points instead of 7,200. Total power consumption drops to 40W. This is a choice about atmosphere more than general lighting.

Installation

With the circuit switched off, screw the bulb into an E27 socket, then switch the power back on. No transformer or accessories required; connects directly to mains power and reaches full brightness as soon as it is switched on.

Benefits of the 10-pack

All ten bulbs come from the same production batch: the amber tint is consistent from socket to socket, which is especially important in setups where several tubes are visible side by side. CE & RoHs certified, with a 2-year warranty.