It's a little frustrating that the picture shows you have 2 blue and 2 red bulbs but all 4 bulbs you get are blinking blue and red would be great because you can use different colors to differentiate the front of the drone from the back. All 4 of the same color won't allow this and that was the main reason I ordered them. You also need to buy velcro. use to mount the lights on the drone because the drone cannot be folded when the lights are installed and you need to remove them to fold the drone and the installation stickers they provide with the lights prevent that You remove and reinstall them properly, no big deal, velcro is great for that. I'm giving 5 stars because all the lights are bright but again it's frustrating that the advertised image doesn't accurately reflect the colors you receive. The seller should fix this so no one thinks they are getting 2 blue and 2 red lights