Observe a torch bulb or an electric bulb carefully What does it contain
XPR18 18 volt 10.8 watt Xenon Torch Light Bulb
2pcs 0.5w Screw E10 Nopolar 3v 4.5v 6v 12v 100lm Cob Led Old Flashlight Bulb Torch Bike Tail Signal Work Lamp Warm 4300k 6000k - Signal Lamp - AliExpress
Vintage Torch Bulb 64mm LED filaments E27 7W 2700K 650Lm.