--- title: Flickering Lights With Water Heater description: Instant electric hot water heaters can sometimes cause lights to flicker when drawing power --- [Skip to content](https://homes.backyardadus.com/migration/knowledge/flickering-lights-with-water-heater#main-content) English Show submenu for translations Backyard ADUs - [Default HubSpot Blog](https://6449359.hs-sites.com/blog) Open main navigation Close main navigation - [Default HubSpot Blog](https://6449359.hs-sites.com/blog) - English Show submenu for translations - Contact us Contact us How can we help you? - There are no suggestions because the search field is empty. 1. [Help Center](https://homes.backyardadus.com/migration/knowledge?hsLang=en) 2. [Troubleshooting](https://homes.backyardadus.com/migration/knowledge/troubleshooting?hsLang=en) # Flickering Lights With Water Heater ## Instant electric hot water heaters can sometimes cause lights to flicker when drawing power Problem: \- Water electric water heaters draw a huge amount of power (80amps+), and can cause a voltage drop to the service at the house.  Whether this voltage drop occurs depends on the power lines and transformer at the street.  When the voltage drops, is causes the lights to dim, and then when the voltage returns the lights get brighter. LEDs resonate (flash) as a very high rate and when the voltage drops occurs the resonation slows down enough so human can perceive it. High quality LED bulbs can address this problem.  **To fix this problem:** \- Change out the flickering bulbs with ultra-high quality LEDs **Option 1:** https://www.amazon.com/Philips-433227-watts-Dimmable-4-pack/dp/B00WEHEU7Q/ref=sr\_1\_5?crid=YLXGNZPPJKZJ&dib=eyJ2IjoiMSJ9.URt-UN\_s9OHI8zLHaCMqrSeq5KjPzG0\_JRIpxDL0uyrKOfigZsnNuYCy8ABJWedsqKofSu6afYv7S0Fi3\_dGKLp3xYY0ZsvxCD8cz8Oeo9rB1ZtX2ARA13HC-wYLE2926QNBO03XN7J5U1ViDMEKMRlWm4kVi2A4VDwRzraC-a4IQYw11vHAtoqKYUgy1shbM8Ugsom7hXdZJeTyM12o2FyKTSuaF\_svo08m2ynT0Jd6mY0L6dk2pF8Jb68-METcZRnAu53uJ61yuKiydITYlfINlqgpNAxsj6NDvRlhC9k.eu3ZxRBrDacYnoZ0Fo5yul0Es6sC17ZaZUttwaClSj4&dib\_tag=se&keywords=philips%2Bled%2Bdimmable%2Bbulbs%2Bflat&qid=1720616056&sprefix=philips%2Bled%2Bdimmable%2Bbulbs%2Bflat%2Caps%2C113&sr=8-5&th=1 **Option 2** https://www.lowes.com/pd/Philips-Philips-Hue-W-11W-A19-E26-US-2P/5005451361 - [Ops Meeting](https://homes.backyardadus.com/migration/knowledge/ops-meeting?hsLang=en) - [News](https://homes.backyardadus.com/migration/knowledge/news?hsLang=en) - [MSCL](https://homes.backyardadus.com/migration/knowledge/mscl?hsLang=en) - [Delivery Logistics](https://homes.backyardadus.com/migration/knowledge/delivery-logistics?hsLang=en) - [Financing Options](https://homes.backyardadus.com/migration/knowledge/financing-options?hsLang=en) - [Feasibility Information](https://homes.backyardadus.com/migration/knowledge/feasibility-information?hsLang=en) - [Troubleshooting](https://homes.backyardadus.com/migration/knowledge/troubleshooting?hsLang=en) - [Meeting Notes](https://homes.backyardadus.com/migration/knowledge/meeting-notes?hsLang=en) - [HVAC](https://homes.backyardadus.com/migration/knowledge/hvac?hsLang=en) - [Policy & Partnerships](https://homes.backyardadus.com/migration/knowledge/policy-partnerships?hsLang=en#main-content) - [State Policy](https://homes.backyardadus.com/migration/knowledge/policy-partnerships?hsLang=en#state-policy) - [Default HubSpot Blog](https://6449359.hs-sites.com/blog) # Backyard ADUs [mailto:email@email.com](mailto:email@email.com) Copyright © 2026, Backyard ADUs