Features:

  • ✔921 LED Bulb, USE for ceiling dome light (single or double). 12V DC only.
  • ✔3.8 Watts, 684 lumens. Ultra bright, don't look directly at the lights to protect your eyes.
  • ✔2019 Upgrade, NO Flickering, NO Buzzing and NO Radio or TV Interference.
  • ✔6000K-6500K super white color temperature without the ugly blue/purple tint.
  • Safe, eco-friendly, No UV or IR radiation and longer lifespan,【1 Year hassle free warranty and satisfaction guaranteed! Or your money back!】
They work great in my RV

I have 4 spare so all the rest worked great right out of the box. Gives a good light spread and while it is a little whiter than some may like, I like things lighter and brighter. My wife on the other hand does not but she liked them too.

they work great

They don't cause any interference with tv and are very bright. Love them.

Awesome

These are awesome. They are very bright. Actually they are bright enough I only need one per housing in my camper. Thanks for an awesome product!

Just the lights I was looking for

Unlike many LED replacement bulbs these do not have a switching power supply. Instead they seem to have several groups of diodes arranged in some kind of current mirror. If you are looking for noise free bulbs that won't generate all kinds of radio frequency noise, these are the bulbs you *are* looking for. The bulbs have built in full wave rectifier so they are not polarized (thus you can plug them in either of the two possible ways and they still work). These bulbs work on a very wide voltage range from less than 11V to above 14V, which is good since I intend to use them for dry camping and on shore power. Note however, that since they are a current mirror setup, the current (and light output) does not appreciably increase with higher voltage and you are just increasing the amount of waste heat generated. While that might make these less efficient then switching power supply they are still much more efficient than any incadescent/halogen bulbs, and their efficiency is higher when dry camping (when battery voltage is lower) when efficiency matters the most. Current ranges at a max of 300mA when first turned on and drops to ~260mA depending on how hot they get. (Always keep LEDs as cool as possible, they give off more light per watt if they run cooler). Like many LED bulbs, the lumens rating are too high. Using a regulate power supply, I dropped the input voltage down to around 9.5V at 270mA. Any lower and the current started dropping, so that indicates that only about 9.5V is across the diodes (likely they are 3V Vf in series strings of 3) and the rest is across the full wave rectifier and the current mirror transistors as the voltage increases. 9.5V*.27A=2.6W. Assuming 120 lumens per watt (the industry standard best is ~150 lumens/watt), these put out about 310 lumens. While that's far under the quoted 684 lumens, they are still very bright. And since there are so many LEDs relative to other lamps that will help ensure better heat dissipation and likely more light. These bulbs replaced incandescent halogens that consumed 18W and put out less light than these so I'm more than happy with them. As a final added bonus, all of the LEDs seems to be in a series current mirror setup which helps helps protect from catastrophic failure. Many switched LED bulbs put diodes in parallel and if one burns up that tends to burn up the device in parallel with it as well. Only downside is that I do prefer soft white to the cooler white these put out, but for the efficiency and lack of RF noise they are worth it.

Bright light

Nice bright light

super bright is right wow what a difference

no problems installing these in 2008 raptor i put a small dab of dielectric grease on base to protect contacts had no problem installing 32 bulb as others have complained of other brands needing some modifications these fit great and put off plenty of light

Wow- What a difference

I usually wait a few months until I write a review but these lights have me so excited I have to write a review now. I cannot believe how bright these lights are. I have replaced all the lights I have in both of my RV bathrooms and a few other lights where the rooms seemed dark.If you are looking for brighter RV lights-- this is it!

Great Light, works great and does the job more than expected.

Super bright 6000K really lights up the camper, replaced just the main isle bulbs for when you need super light.. Left the 3500K LED’s in the parameter fixtures for later at night relaxing. The 6000K work great for cleaning and looking for items. All the bulbs worked great and fit the camper fixture with no issues.. Ordering another 10 bag...

Great product!

I am very happy with this product. Exactly as described. Easy to install.

The brightness of these bulbs.

Put these in all light fixtures and it is like complete daylight in kitchen and bedroom and bathroom where they are. So bright. Now have to order another package to do living room area. Great lights.

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