Can I put a 25W bulb in a 40W socket?
Table of Contents
Modern fixtures reveal their wattage rating somewhere in the assembly—you just have to know how to look for it. Once you identify your fixture’s wattage rating, buy a lamp that matches or is below what’s listed. As long as you don’t go over the manufacturer’s recommended wattage, you’ll be safe.
Can I use a 25W bulb in a 40W lamp?
3 Answers. Show activity on this post. Yes, that’s fine. The ‘maximum wattage’ rating listed on a light fixture is actual watts, not incandescent-equivalent-watts.

Can I replace a 25W bulb with a 40W LED?
I suspect its brightness (lumens) are equivalent to a 40W incandescent but its actual power consumption is much less than 40W and likely less than the 25W regular chandelier bulb. If my suspicion is correct, yes, you can safely use the 40W equivalent LED chandelier bulb.
What size LED bulb can I use in a 40 watt fixture?
And some bulbs are marked not for use in fully enclosed fixtures. So long as the bulbs are not marked for limited use, you can generally use an LED bulb that is rated much higher than an incandescent bulb. In general, there is no problem using a 75W equivalent LED bulb in a fixture marked 40W maximum.

Can I use a 25W bulb in a 20W?
25W in a 20W socket is 25% oversized. so just as bad. There’s a good chance that something will break, and it might be the transformer in the base of that lamp, that part is most unlikely to have 25% excess capacity.
WHAT LED bulb replaces a 25 watt bulb?
In terms of LEDs, a 25w bulb is equivalent to a 2w LED, 40w bulb equals 5w LED, 50w bulb equals 7w LED, 75w bulb equals 9w LED and a 100w bulb equals 12w LED.
What is the LED equivalent to a 40 watt bulb?
Compare wattage
Traditional bulb1 | Halogen2 | LED |
---|---|---|
40 watts | 25 watts | 5 watts |
60 watts | 40 watts | 7 watts |
75 watts | 45 watts | 9 watts |
100 watts | 60 watts | 12 watts |
Can I use a 10w LED in a 40W socket?
When it comes to replacing old incandescent bulbs with LEDs, a common question that customers ask is: “Can I use an LED bulb that has a higher wattage equivalent than my fixture allows?” The simple answer is yes, as long as the LED bulb uses less wattage than your fixture.
Can I use a 10w LED in a 40w socket?
Can I use a 60 watt LED bulb instead of 25W?
Can I use a 60 watt led bulb that uses only 7 watts to replace my current incandescent 25 watt bulb? Never mind the lumens, it can be dimmer…..thanks. Show activity on this post. Yes, that’s fine. The ‘maximum wattage’ rating listed on a light fixture is actual watts, not incandescent-equivalent-watts.
Will a 7 watt light bulb work in a 60 watt socket?
A 7 watt lamp should be fine in a 60 watt socket. Watts are heat, 3.4 btu’s per watt/hour. So 7 watts will put out less than 1/3 the heat than a 25 watt bulb.
Do I need a dimmer for a 25W bulb?
So that will provide comparable light to a 25W incandescent bulb. Dimmable – if you are not using a dimmer, it doesn’t matter. If you are using a dimmer then if you get bulbs that are not dimmer-compatible then they (a) likely won’t dim reliably and (b) might flicker or blink or just be unreliable. Show activity on this post.
How much heat does a 7 watt bulb put out?
Watts are heat, 3.4 btu’s per watt/hour. So 7 watts will put out less than 1/3 the heat than a 25 watt bulb. Some concern needs to be considered that the heat is dissipated differently from an LED than an incandescent element, so generally it is a good rule to not use an LED that uses more than half the watts an incandescent socket is rated for.