1383-3W-CW Cool White 1383 Retrofit Bulb 3 Watts Aluminum Finned Housing

The bulbs came well packaged. They all fit and work in place of 1383 bulbs. Time will tell how long they last.

got these to replace the incandescent bulbs they were so warm it made the fixture smell. The LED's are cool to the touch and don't over heat or smell. I'll be ordering more later.

Excellent! Every one of them (4), worked perfectly the first time. Fast response on the order and receiving it. Never been disappointed with m4products. P.S. you have products that can not be found anywhere else. Thanks and keep up the good work.

The items was as described, worked well and were delivered in a very short amount of time. I plan to purchase more and recommend M4 to others.

We wanted to replace the bulbs in our reading lamps above the bed in our 5th wheel. My wife was always concerned about how hot the lamps were after being on for only a few minutes. The bulbs produce more light and produce no noticeable heat. She loves them.

I tried several bulbs for the spotlights over our couch and driver's and passenger's seats and none were bright enough. Then I found these at M4 and they are great. My wife is into coloring and at 5000K they give her the accurate colors and brightness she is looking for. They are more expensive than the others I tried, but worth it, especially since they should last as long as we own the motorhome. These lights are cooler than the incandescents they replaced. I could hold my finger on the bulb only 5 to 10 seconds, so they are very warm, but not hot. Shipment arrived when expected.

I ordered several Bulbs and arrived on the East Coast min three days. Can't beat that. I have installed the bulbs and all worked and the color is just what we wanted. Thanks M4. Will be ordering more soon.

so far lites dont get hot bright workjust fine for what we need thank you

I like the LED lighting very much. They are very bright. One thing I don't like is that they cast a very faint blue band of light on the ceiling of the camper. I also noticed that on at least one of the lights one of the LEDs is not on. It looked like one of the lights was not the same color as the others so I took the lenses off for a better look. I think the color was in the lens or the angle I was looking from but I noticed one of the LEDs was off. We just returned from 8 weeks on the road but we tried very hard to have electric so we could have air conditioning. Therefore I have not been able to determine how long my battery will last with the LEDs. M4 Notes: This is Cool White which is closest to the blue spectrum. Though they do not show as blue, if the light refracting off of anything it could bend it blue which is a guess as to why you see a stripe. This has never been reported before. This item is also available in Warm and Natural White which is away from the blue scale. Please contact us with any / LED chip out issues to be resolved. Unfortunately altering the LED by removing the designed in protective cover / diffuser does void the warranty though. But if there are every any concerns with any product, please contact us first.