bulb

I am selling the following items: 1. Aqara M2 Zigbee Hub - ₹3500 Product details 2. Wozart Smart Plug 1000W - ₹2000 Product details 3. TP-Link Smart Bulbs L530E - ₹500/each Product details 4. Intel M.2 Gigabit Ethernet card - ₹2000 Product details 5. Yubico YubiKey 5C Nano - ₹4500...

Selling few Smart devices 1). Syska 12W B22D Wi-Fi Smart Bulb (1 no) - Currently running on ESPHome Custome Firmware (local control - out of cloud) Price - 500₹ 2). SONOFF MINIR2 – Wi-Fi Wireless Switch (3 nos) - Currently running on Tasmota Custome Firmware (local control - out of cloud)...

Is there any emergency light/bulb that can automatically power on when there is no electricity but turns off when there is electricity and continues charging? I already have a so called emergency bulb, but it always lights up. The requirement here is to have the bulb light off during...