has anybody have this problem, when trying to connect 2 spiderfarm lights they cut out, cant manage to get dimming working, i hane 2 sp2000 one new one old?
Have you reached out to Spider Farmer themselves for some help? This is a link to their "contact us" page - you can either send them an email or they've got a phone listed so you can call. https://www.spider-farmer.com/contact-us/?gclid=Cj0KCQjwuaiXBhCCARIsAKZLt3nlkdCPVnaFu3Zhv_JD-A_Yzj3dSan3cmT1Ps0f5WxCkNjsMyfkuq4aApLDEALw_wcB
Good luck!
Do you need a screwdriver to dim the older one and a knob on newer?
The current version of these grow lights come with a dimmer knob and daisy chain capability. The first generation did not feature daisy chain, and the dimmer needed to be adjusted from underneath the driver.
If that's you then probably not, if both are knob type ie daisy chain and your problem exists then it is possible you have a problem.
This is common with lights that use drivers/dimmers mounted direct to light in tent conditions from heat/moisture during use.