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27 votes
Accepted

Why does my halogen T-4 desk lamp not light up the bulb completely?

The bulbs in the link say 120 Volt. Your lamp says use 12V 50W. I think you just got the wrong bulbs.
  • 988
25 votes
Accepted

What outdoor lightbulb is this?

There is probably a spring loaded contact on one end. Try moving the bulb gently both ways and see if moves. If so, move it far enough to remove it via one of the slots on either end of the bulb ...
14 votes

What outdoor lightbulb is this?

The socket is called R7s. These halogen light bulbs have lengths of 78 mm, 118 mm, 189 mm or 254 mm. From the picture it seems to be an 118 mm, which is most common. (Measure or read the imprint) You ...
7 votes

How do I change the bulbs in this light fixture?

Looks like a GU10 bulb. You can usually remove it by lightly pressing the bulb itself and twisting it anti-clockwise.
5 votes

Two-way or two-strength LED bulbs

The high and low settings of the lights on your range hood are most likely not controlled by standard semiconductor triac dimming technology. Such technology is typically used where continuously ...
  • 62.3k
4 votes

Can I replace tungsten-halogen lamps with an LED version?

These types of lights range in voltage from 6V to 120V depending on the fixture. The voltage & wattage should be stamped on the glass. These lamps usually create a large amount of heat if you ...
  • 101k
3 votes

recessed light only works with halogen bulb?

It may be a dimensional issue. Incandescent/halogen typically have a long narrow stem. CFLs put a pudgy power converter module right at the bottom. Some LEDs unnecessarily do the same since CFLs do....
3 votes

Sparks from desk lamp?

Lamps below the low contact voltage are not uncommon. I have installed many “fancy” systems that the conductors are not insulated and the lamp holders clip on to the wires . Some fixtures have fancy ...
  • 101k
3 votes

Why does my halogen T-4 desk lamp not light up the bulb completely?

The answer by izzy most likely describes the problem. If for some reason the newest bulbs don't function, you should: Check the transformer at the base of the lamp. You'll need a voltage meter to ...
  • 10.8k
3 votes

How do I change the bulbs in this light fixture?

Either - a bayonet fitting - push up a little, turn anti-clockwise 90 degrees, with a protected hand, or- a screw fitting, again, slight push up, and unscrew anti-clockwise for several turns. best to ...
  • 4,410
3 votes

How do I change the bulbs in this light fixture?

It may be possible to pull out the entire fixture by pulling the outer metal ring downwards, maybe by inserting some plastic tool or card between the parts. This looks a little non-standard to me due ...
  • 249
3 votes

What outdoor lightbulb is this?

It is the older type of halogen fitting, with a spring loaded pin at each end. Despite a comment, it's usually fitted outdoors - it's often a high wattage, and will get hot, so outdoors is sensible. ...
  • 4,410
3 votes

Wiring Halogen Lights (MR16)

Just to answer your question,yes, you would need a step down transformer from 120V to 12V. The transformer size would need to be the total wattage of the lights for your display. If you used 3-50 ...
  • 66.8k
3 votes

Wiring Halogen Lights (MR16)

looking to wire up 2-3 halogen bulbs (mr16) to help create a realistic looking fire pit on stage. Is there a way to wire up these lights so that I can plug them into a standard 120v outlet? Yes, you ...
  • 8,049
2 votes

LED light bulbs turn off immediately after being switched on

This question is old, but it just hit 1000 views so I thought I'd post the answer. The 12V PSUs were all at end of life, and were failing. It may have been that the 3.5W bulbs were too low power to ...
  • 187
2 votes

Using LED light bulbs in a dimmer

Many dimmers need a minimum wattage load to function. Four of the LEDs is 29.2W and is probably too low for the dimmer. The single remaining halogen alone is 39W (I assume it worked with the dimmer ...
  • 10.8k
2 votes

recessed light only works with halogen bulb?

You have in that fixture a PAR38 halogen bulb that is working. It is a larger bulb than the PAR30. Both of these types use the same Socket Style and so can be interchanged as long as the lamp fits - ...
  • 5,283
2 votes

How to wire a 220V to 12V transformer

Unscrew the cover and you'll see 2 sets of connectors/terminals. One set for primary, one set for secondary. Connect 230V to terminals marked as primary (at the top of the picture), and the second set ...
2 votes
Accepted

What does it mean for a halogen globe to strobe and then blow?

I have seen halogen strobe prior to totally failing, I have found 2 causes one was the lamp element itself that was bouncing around causing the flickering then failure, the other failures I have found ...
  • 101k
2 votes

Halogen Light Fixture with Broken prong

It is NOT safe since as indicated in the question only one prong of the bulb is in its socket contact. Obviously the other one that you left out is merely touching the other broken off prong. ...
  • 62.3k
2 votes

Is it possible to drive led strips using a halogen driver?

Your power supply doesn't like the LEDs. That's not a surprise. Either because there isn't enough current flowing (the halogen acted as a dummy resistor to create some load), in which case more ...
2 votes

Can I replace a Maximum Bulb Wattage (Watts) 25 halogen light bulb with 5w LED light bulb? Is it safe?

When choosing lamps, as long as the actual wattage is below the rating of the fixture, you're safe. It doesn't matter that the fixture generates a lot of light with the watts it consumes. The ...
2 votes

Can I replace tungsten-halogen lamps with an LED version?

You should be able to find LED replacements that use the right socket (from your picture I'd guess it's a G4 socket) and voltage. The main point of LED lamps is that they require less electrical ...
  • 253
2 votes
Accepted

Halogen transformer replacement: safe to use 60w max to replace a 75w max?

Depends. What load is on the downstream side? If there's only one 50W bulb, you should be fine. Two 35Ws? Need a bigger one.
2 votes

Replace Halogen spot light

if a GU16 bulb, then you have to push -in- and turn. This is due to the little 'nubs' on the end of the connectors
  • 5,631
2 votes
Accepted

Using LED lamp in kitchen range hood

The key issue is heat. A 40W halogen produces a lot of heat. An equivalent LED will be around 4W - so 10% as much power and on the order of 10% as much heat. However, halogen bulbs love heat, LEDs do ...
2 votes

how to replace the MR-16 bulb from this lamp fixture?

I've seen a few fixtures like that. See that tabbed ring around the outside of the face of the bulb? Try compressing it with needle-nose pliers right where the missing tooth is. It should pull out ...
  • 4,503
1 vote

is there such a thing as a 120V XENON G6.35 bulb

My apologies, but I must revise my original answer. There are "xenon" bulbs that are actually halogen bulbs filled with xenon gas. But what many consider to be a xenon bulb is an HID bulb filled with ...
  • 6,134

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