In a recent power surge, most mobile chargers and LED bulb blew. Nothing happened to incandescent bulbs or fan. Luckily I had a power strip with surge protect

In a recent power surge, most mobile chargers and LED bulb blew. Nothing happened to incandescent bulbs or fan. Luckily I had a power strip with surge protection on which all my expensive equipment were hooked. Power strip blew up but saved my equipments. Edit: if you open your mobile charger you'll see 400v capacitor right after the bridge rectifier. On 220v mains this circuit needs to handle 310v but can survive upto 400v peak to peak. But power surges can be more than 400v, and similarly the circuit in CFL or LED driver can only survive very low band of power surges. Unless you've surge protectors in your house actively scrubbing mains dirty electricity, you'll see your LEDs will not survive long enough. LEDs don't survive because driver quality sucks and can't deal with mains fluctuation, and LEDs are very sensitive to temperature and voltage, little change in temperate or voltage, will drastically change the current going through the LED and will burn them. I solved the problem of continuously burning my LEDs by running low voltage DC lines and using 3 level surge protection in my house. Now, I've several mounts for LEDs with fans which keep the temperature in control. You need serious cooling for anything over 5w led. I am using aluminium heat sink with fan and my LEDs don't die.