The 10-pack of Wi-Fi-connected E27 4W amber ST64 CCT LED filament bulbs combines the elongated shape of an Edison tube with an adjustable color temperature, for installations where several visible light sources need to change together throughout the day.

Specifications per bulb

Each bulb draws 4.2W for 400 lumens, or 95 lm/W, equivalent to a 42W incandescent bulb, with a 360° beam angle. The CCT function continuously covers the 2700K to 6500K range, with a color rendering index of Ra 80. The amber glass ST64 tube measures 6.4 cm in diameter and 14.3 cm in height. Energy class F, IP20 rating, operating range -20°C to +40°C.

Control and multi-point management

The 2.4 GHz Wi-Fi module connects directly to your router: no gateway or hub required. The 5 GHz band is not supported, so you must select the 2.4 GHz network during pairing. The Silumen Home app, also compatible with Tuya Smart and Smart Life, lets you create groups to control all ten bulbs at once: on/off, brightness from 1 to 100%, color temperature, scheduling, scenes, and sharing across multiple accounts. Voice control with Alexa, Google Assistant, and Siri. Dimming is software-based, so no phase-cut dimmer should be installed upstream.

Installation

With the circuit switched off, screw the bulb into an E27 socket, restore power, then pair it. It connects directly to the mains, with no transformer. Ensure sufficient Wi-Fi coverage where the lights are installed, especially with high-hanging pendants or metal suspended ceilings.

Benefits of the 10-pack

The bulbs come from the same production batch, ensuring a consistent color temperature from socket to socket - a key consideration when the tubes are lined up above a counter or dining table. The pack also makes bulk restocking easier. CE & RoHS certified, with a 2-year warranty.