Review on 💡 GRV T10 921 194 5050 SMD LED Bulb Lamp Pack of 10 - Super Bright Cool White DC 12V by Justin Butler

Short/simplified description of LEDs (no technical details). The LEDs themselves do not interfere with radio/TV signals. The voltage regulator in some lamps causes interference: this means if the input voltage has a range (e.g. 8-24V or similar) there is a good chance that you will have interference on certain signals. On the other hand, a lamp with no input voltage range (12V or similar) has no regulator and will not interfere with certain signals. Although 12V DC may not always be available from your power supply (i.e. RV batteries can reach 15V while charging). This can cause the 12V flat LED bulb to flicker or even burn out. This is just a general idea of LEDs and should not be a definitive guideline for all LED bulbs. Now these special lamps do NOT have a voltage regulator and do NOT cause radio interference. I installed 15 of these lights in my RV: all overhead and bedside reading lights. No interference including a light directly above the TV/radio. Warm white "GRV T10 921 194 13-5050 SMD Wedge LED Bulb Lamp" goes very well with original 921 halogen bulbs! Although all 921 halogens should be replaced at the same time, they are not ideal for maintaining halfness. I can't say anything about the flickering and/or burn-in of some LEDs. These bulbs were installed when I was connected to shore power, there was no flicker and they didn't burn long enough to burn out individual LEDs. I didn't have a chance to test the light at different stages of power supply or lamp life. But so far so good, 5 stars without further ado. I installed a cool white GRV T10 921 194 13-5050 SMD Wedge LED bulb above my kitchen sink, stovetop and in my bathroom. I wanted a brighter/cooler bulb for these areas. These lighter ones have radio interference, but I will only use them for cooking and going to the toilet. So I've used the warm white 'GRV T10 921 194 13-5050 SMD Wedge LED Bulb Lamp' throughout - no interference and a better match to the original 921 halogen bulbs. No complaints about any of the bulbs, just know what you are using knowledge search. Also, LEDs only work in one direction. If the wedge lamp does not light up, rotate it 180° and reinsert it.