Figueiredo

Deye inverter AC is clean, zero fan noise almost passive cooling, amazing, good monitoring app solarman smart, hardware is heavy with a big heatsink, much better in every aspect, even you can monitor locally via wifi. Finally can use my electric guitar, Deye costs more but is worth it, if you are going offgrid don't save money with Voltronic and Growatt, in the end money will be lost.

Seems that changing to 220V does helps a little, but still too much noise. I am still waiting for Deye SUN-5K-SG03LP1-EU inverter to arrive, will post here all findings.

Looks like Luxpower is the same as Huayu (www.huayu-solar.com) Huayu is related to Ningbo, while Ningbo is related to Deye. Does Luxpower comes from the same factory as Deye?

Thank you very much for the info, going to try 220v and check if noise is reduced.

RFI exist as long as AC out is running, no difference if energy comes from solar or batteries. There is no interference when the inverter is working with solar charging the batteries but with main AC switch off, even RFI is minimal when guitar is centimeters away from the inverter as long AC is off. I wonder if this interference is normal on cheap inverters, how much money we have to spend to have clean electricity?

Hello everyone, I have an offgrid tinyhouse in Portugal with 8 panels of 450w and a Voltronic Axpert VM IV 5600-48 inverter, we moved in about 2 months ago but last week when I tried to use the electric guitar I discovered a huge amount of interference inside the house connected to the AC 220V 50hz output of the inverter. The interference occurs even without an amplifier since I use a BOSS GT1 pedalboard that works with AA batteries and headphones, the interference is null far from the house and increases as I get closer, the only way to be able to use the guitar inside the house is with the circuit breakers turned off with no electricity running through the wires in the walls. I believe the inverter is creating a terrible sine wave and a very intense harmonic, all wires that carry electricity create this electromagnetic interference up to 5 meters, also the inverter itself creates interference around 10 meters, this was tested with the guitar on batteries. The sound is very similar to a 100hz sawtooth tone like this: https://www.szynalski.com/tone-generator/#100,saw,v0.49 This interference is even radiated by objects connected to the electricity, the washing machine becomes a very big antenna. I don't know the THD (total harmonic distortion) stated by Voltronic for this inverter because they don't include this info on brochures, also all information related to certifications is not very public. Another problem with the inverter is fan noise, when it gets hot the fans go to max speed but when the temp goes down the fans keep at 100%, I must restart the inverter to get the fans running normally. For remote monitoring we must use Watchpower android app, inverter sends data to china every 6 minutes and their servers seem unreliable, sometimes the app is very slow and it is a pain to use. Already tried Ferrites (31, 61 and 75 Types) and some EMI filter to reduce the interference but they make no difference. At this point I am not very happy with the inverter, I wonder why it's so hard for them to allow local monitoring via WIFI, they just need to open some TCP ports or implement some HTTP server for remote management, even cheap printers have HTTP website so it is not that complex. Just ordered a Deye SUN-5K-SG03LP1-EU because of the good reviews and specs: THD<3% (Linear load<1.5%) Grid Regulation CEI 0-21, VDE-AR-N 4105, NRS 097, IEC 62116, IEC 61727, G99, G98, VDE 0126-1-1, RD 1699, C10-11 Safety EMC / Standard IEC/EN 61000-6-1/2/3/4, IEC/EN 62109-1, IEC/EN 62109-2 It's hard to know the kind of noise or interference I will get, also I don't know if included WIFI monitoring is going to be any good, at this point the only thing I am sure is that we are running out of money! Any comments? advice? experience? anyone has electric guitar and inverter?