Some LED replacement lights have built-in voltage regulators that allows the LEDs to work over a wide DC VOLTAGE range. These type of LED assemblies are known to produce RFI signals that may interfere with your HDTV, WX RADIOs, and other units like HAM RADIO, Home Scanners, etc...
These are especially prone to RFI interference when using your OTA OUTSIDE ANTENNAs that have weaker signals.
What most folks will do is buy only one of the LEDs sets they want to see how it worked first before buying 34 of them... Might save you $150 buck or so...
You will also have to learn the difference in LAMP WATTs and LAMP LUMENS. The LED items are specified in LUMENS. 250 LUMENS is roughly the same brightness of a 40WATT LAMP. We liked the WARM WHITE Temperature type the best.
I ordered the cheap $4.99 LED BOARD from EBAY CHINA first then ended up ordering many in lots of ten after I found out they worked in my setup for even a better deal.
This cheap price gave me a chance to have several spare LED boards on hand which I have not used since getting them in 2010. I replaced the automotive type high current and very hot 1156 and 921 bulbs...
This was a hugh power savings for us when we want to camp off the batteries off the power grid. I think they say it is around 180% power savings over the automotive incandescent type bulbs.
Roy Ken