# Z-wave switch and LED bulbs not as bright? **URL:** \ **Category:** Devices & Integrations\ **Created:** [May 18, 2020, 3:32pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445 "2020-05-18T15:32:11Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 18, 2020, 3:32pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/1 "2020-05-18T15:32:11Z")
I installed a GE (my second) z-wave switch, it’s working BUT the LEDs in the fixture that it’s turning on are now MUCH dimmer than they are supposed to be. And it’s not a dimmer switch. Any idea why? ---
**Author:** ![JDRoberts](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jdroberts/32/56577_2.png) [@JDRoberts](https://community.smartthings.com/u/JDRoberts)\ **Post date:** [May 18, 2020, 3:38pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/2 "2020-05-18T15:38:40Z")
That’s not common. What’s the model number of the switch? (It’s stamped on the front part of the device.) ![image](https://global.discourse-cdn.com/smartthings/original/3X/5/7/5770c9f3b0f0cf03d6d620267f79ce3988ddc866.jpeg) ---
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 18, 2020, 7:13pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/3 "2020-05-18T19:13:54Z")
Model is 1951B. And do you think this would happen is the black and grey wires were reversed? ---
**Author:** ![Automated\_House](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/automated_house/32/99641_2.png) [@Automated\_House](https://community.smartthings.com/u/Automated_House)\ **Post date:** [May 18, 2020, 7:35pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/4 "2020-05-18T19:35:03Z")
1951B is what’s stamped in the metal? That doesn’t sounds like a GE zwave model number. They start with ZW. ---
**Author:** ![JDRoberts](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jdroberts/32/56577_2.png) [@JDRoberts](https://community.smartthings.com/u/JDRoberts)\ **Post date:** [May 18, 2020, 8:52pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/5 "2020-05-18T20:52:12Z")
The model number will be cut into the metal and starts with a Z. There may be other stickon labels are used for inventory control and S2, but those are not the model number. ---
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 18, 2020, 9:07pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/6 "2020-05-18T21:07:05Z")
My bad… it’s ZW4008 ---
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 19, 2020, 11:02pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/7 "2020-05-19T23:02:50Z")
Also, this is on a “duel throw” switch. Is that a problem that needs either a different switch or something done on the other switch? ---
**Author:** ![Automated\_House](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/automated_house/32/99641_2.png) [@Automated\_House](https://community.smartthings.com/u/Automated_House)\ **Post date:** [May 19, 2020, 11:05pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/8 "2020-05-19T23:05:55Z")
dual throw as in there are two wall switches for the same circuit? ---
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 19, 2020, 11:19pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/9 "2020-05-19T23:19:02Z")
Correct. Top of stairs and bottom. ---
**Author:** ![JDRoberts](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jdroberts/32/56577_2.png) [@JDRoberts](https://community.smartthings.com/u/JDRoberts)\ **Post date:** [May 19, 2020, 11:26pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/10 "2020-05-19T23:26:54Z")
> [@Coloradoark](#): > > Correct. Top of stairs and bottom. In the US, that set up is referred to as a “three-way.“ (A dual throw switch is something else. Your original dumb master switch may have been a dual throw switch, but your Z wave model is not.) And for the GE model that you were using, you can’t use the original dumb auxiliary switch: you have to replace both the master and the auxiliary switch. See the following threads: (The topic title is a clickable link) > [@FAQ: Zwave Switches 101 for Noobie (What's an Add-on Switch for and Do You Have to Replace All the Switches in a 3-Way?)](https://community.smartthings.com/t/faq-zwave-switches-101-for-noobie-whats-an-add-on-switch-for-and-do-you-have-to-replace-all-the-switches-in-a-3-way/54638/): > > Brand new to Smartthings and trying to get some areas of the house “connected” ASAP. Most of the devices available are intuitive enough to figure out, but one area that seems to be a bit confusing is the on/off light/scene/etc. switchs that are available. I am mainly confused with the 3/4-way options, the add on switches and how these inter-operate with existing switches (if at all). My initial understanding is that I can replace a single pole switch with something like the GE Z-Wave Wireless Lighting Control On/Off Switch, if I want it to be able to dim the lights I need one that supporting dimming. If I have a 3/4 way lighting setup I need to get a zwave/wireless switch that is capable of supporting 3/4 way. However does this mean I can just replace one of the existing switches with… . > [@\[FAQ\] GE 3-Way Wiring](https://community.smartthings.com/t/faq-ge-3-way-wiring/74962): > > I’ve decided to put this FAQ together to help those with questions about installing GE 3-way switches. Definitions of terms: Line: The hot wire from the breaker (usually black) Neutral: The return wire for circuits (usually white) Load: The wire that will be hot when the circuit is completed to your light (usually black) Traveler: In existing 3-way wiring, this wire toggles hot between two switches. In a smart switch 3-way configuration, a smaller charge is looped through the add-on switch. Some things to know: 3-way wiring for smart switches is different than standard 3 way wiring. You cannot use dumb 3-way switches with most smart switches (You must purchase the matching GE add-on switch to wire with your GE smart master switch). If the line is wired into the light fixture, you … ---
**Author:** ![Coloradoark](https://avatars.discourse-cdn.com/v4/letter/c/50afbb/32.png) [@Coloradoark](https://community.smartthings.com/u/Coloradoark)\ **Post date:** [May 20, 2020, 1:11pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/11 "2020-05-20T13:11:24Z")
Thanks is a million for this! The wiring looks straight forward. One last question to be clear, I can accomplish this simply with one more of the same switch I already have correct? ---
**Author:** ![Automated\_House](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/automated_house/32/99641_2.png) [@Automated\_House](https://community.smartthings.com/u/Automated_House)\ **Post date:** [May 20, 2020, 1:41pm UTC](https://community.smartthings.com/t/z-wave-switch-and-led-bulbs-not-as-bright/194445/12 "2020-05-20T13:41:31Z")
Assuming you want white, you would get this add-on switch: > **[GE Enbrighten Add-On Switch with QuickFit and SimpleWire, GE Z-Wave/GE Zigbee...](https://www.amazon.com/GE-Enbrighten-SimpleWire-SmartThings-46199/dp/B07RQ8K25S/)** > > GE Enbrighten Add-On Switch with QuickFit and SimpleWire, GE Z-Wave/GE Zigbee Smart Lighting Controls, Works with Alexa, Google Assistant, NOT A STANDALONE SWITCH, White & Light Almond, 46199 - - Amazon.com