2026 Update: Rechargeable bulbs charge when the switch is on, not when it is off. If the fitting is off, the bulb does not get power, so it cannot charge.
- Switch on: the bulb can charge in normal use.
- Switch off: the bulb does not charge.
- During a power failure, the bulb can act as an emergency light once it has charged.
How it works in normal use
The bulb works like a normal household lamp while the light switch is on. The current product notes say the internal Li-Ion battery charges whenever the switch is set to ON.
What to expect during load shedding
According to the current product notes, the bulb needs about 5 to 6 hours of charging to last up to 4 hours during a power failure.
If you need a similar option, see the 5W Rechargeable Bulb, the 4W rechargeable B22 lamp and the LED Emergency Rechargeable Downlight - 6 Watt GU10.
Technical note
The current product notes say these lamps do not always test properly in a simple mains-off setup. For the most reliable result, follow the product instructions and test the bulb in a normal household circuit.
FAQ
Do rechargeable bulbs charge when the switch is off?
No. They need the switch on so power reaches the fitting.
How long does this bulb need to charge?
The current product notes say 5 to 6 hours.
Will it turn on automatically during a power failure?
If the switch is on, the bulb can switch on as an emergency light when the power goes off.
For more guidance, read Rechargeable light bulbs with remote are essential for load shedding in South Africa and Essential emergency lighting solutions for Cape Town homes.
