LED comparrison

Assuming we can trust this information - fly by night Chinese maker definitely should be trusted, right? :) - 250 lumens is the same or slightly brighter than incandescent 20W RV bulb. It can also be yellow-er or pink-er, or blue-er, or it can have 1/10 of advertised brightness. Happened many times. This is why people here prefer not to pay more than $1 or 2 a pop. Check Ebay for SMD 48.

You generally get what you pay for in LEDs.

Amazon these days is a new Ebay, only more expensive. Typically, on Ebay this board costs $5 each, or $10 for a pack of 4-6. Amazon item is different from Ebay boards not in quality (hard to believe in this), but in that it has plastic cover that goes around the back and rigid-mounted 1156 connector, while Ebay boards are self-adhesive with 1156 male connector on pigtail. I am not sure that plastic cover is better though. Contrary to what seller says, there is quite a bit of heat from boards of that size.

I think it would be about equivalent to the bulb it replaces. Note: this LED lamp comes with a regulator circuit that may cause some electrical interference to some radios and TV's.

The description say it has 24 2835 LEDs. If I assume they mean 3528 LEDs then I would expect the lights to be substantially dimmer, about 50%, than the 1156 lights. I am using 36-3528 panels and I find them about the same as the 1141 lights which are not quite as bright as the 1156.

LED packaging
The 2835 LED chip has just about the same footprint as a 3528 but can take a lot more current, hence, more light output.

Do you really mean 1157 as stated in your post? This is claimed to be a replacement for an 1156. The 1157 is a 2 contact base while the 1156 is a single contact.

westend wrote:
LED packaging
The 2835 LED chip has just about the same footprint as a 3528 but can take a lot more current, hence, more light output.

I stand corrected. :S

Live and learn. Thanks for the correction.

I replaced several of my incandescent bulbs with LEDs last year and here's a link to my results:
LED install

The LEDs are holding up well. No failures yet.

I paid

A LOT OF MONEY

For "Genuine 7 watt CREE 1156 bulbs" from a USA CREE dealer

They check out wonderfully at 2.6 watts at 12.0 vdc

They put out as much light as a $1.99 25SMD panel but the light is bluer.