COOKER ISLAND RANGE HOOD GL9002 4-12V. HALOGEN BULBS GO OUT THAN GO ON, NO OBVIOUS SIGNS

Is it halogen or led? Need model number of the hood. If halogen do not touch the new bulb with your fingers. The oil from your fingers will cause the bulb premature failure.

These Halogen bulbs are inefficient, and run so hot that they often damage the reflector and bulb socket if they are left on too long. Fortunately there is an easy fix for this. At most stores that sell the exact replacement Halogen bulbs (Lowes, Home Depot and others) you will see a selection of LED bulbs on the same display rack that will fit into the same socket the Halogen bulbs use. It is IMPORTANT that you know the code number stamped on the base of your Halogen bulb AND its voltage because some Halogen bulbs are 12 volts and some are 110 volts. If you can't read the labeling on the bulb, look for the wiring diagram usually glued inside the range hood or look in your owner's manual. Once you know your Halogen bulb's code number, look at the packages that the LED replacements come in. There will be a list of Halogen bulb code numbers that the LEDs are meant to replace. The male sockets on these LED replacements will be shaped just like the sockets on your original Halogen bulbs so they will plug in easily. However, just like LEDs bulbs that replace the old incandescent bulbs in your table lamps or ceiling sockets, they have an electronic section included in there base to run the LEDs and it makes the LED bulb slightly longer than the much simpler Halogen bulb. For my stove hood it meant that the bulb would not quite fit into the reflector in the hood. I had to use a Dremel tool to remove a bit of the reflector to get a proper fit. The LED bulb is just as bright but runs SO much cooler and uses so much less electricity that now I can use the range hood as a night light in the kitchen. I never felt safe doing that with the two Halogen bulbs since they ran so hot that they were burning the fixture that held them in the stainless steel hood and were melting the wiring entering the socket base. This upgrade to your range hood is well worth the effort.

Just look this youtube video, and it can't be more clear.
Don't forget to unplug the hood, or switch it of. Although the halogen lamps are only 12 volt. In the hood are dangerous voltages. How to replace cooker hood halogen bulb or lamp

These Halogen bulbs are inefficient, and run so hot that they often damage the reflector and bulb socket if they are left on too long. Fortunately there is an easy fix for this. At most stores that sell the exact replacement Halogen bulbs (Lowes, Home Depot and others) you will see a selection of LED bulbs on the same display rack that will fit into the same socket the Halogen bulbs use. It is IMPORTANT that you know the code number stamped on the base of your Halogen bulb AND its voltage because some Halogen bulbs are 12 volts and some are 110 volts. If you can't read the labeling on the bulb, look for the wiring diagram usually glued inside the range hood or look in your owner's manual. Once you know your Halogen bulb's code number, look at the packages that the LED replacements come in. There will be a list of Halogen bulb code numbers that the LEDs are meant to replace. The male sockets on these LED replacements will be shaped just like the sockets on your original Halogen bulbs so they will plug in easily. However, just like LEDs bulbs that replace the old incandescent bulbs in your table lamps or ceiling sockets, they have an electronic section included in there base to run the LEDs and it makes the LED bulb slightly longer than the much simpler Halogen bulb. For my stove hood it meant that the bulb would not quite fit into the reflector in the hood. I had to use a Dremel tool to remove a bit of the reflector to get a proper fit. The LED bulb runs SO much cooler and uses so much less electricity that now I can use the range hood as a night light in the kitchen. I never felt safe doing that with the two Halogen bulbs since they ran so hot that they were burning the fixture that held them in the stainless steel hood and were melting the wiring entering the socket base. This upgrade to your range hood is well worth the effort.

So where do we buy the bulbs? We've been looking for ages. Thanks.

You have to just force a flat head screwdriver in the gap (the inner gap) and pry out the cover.
Like this: http://www.youtube.com/watch?v=ssTCGPj9CWY
The kukoo isn't as obvious, but it's the same.

FIRST TURN OFF THE POWER TO THE HOOD UNIT THEN LOCATE THE BULBS AND REMOVE TAKE THEM TO THE LOCAL DIY STORE TO FIND REPLACEMENTS IF NOT FOUND THERE YOU CAN GO TO AN ELECTRICAL AND PLUMMERS SUPPLY STORE , GOOD HUNTING.

I just bought two at Home Depot for around $7 each. I, too, saw the inexpensive internet ones and decided to spend the extra money and look at them first. I bought bulbs by Philips, called Desk & Cabinet (for enclosed bulbs). They are 20W and 12 volts as you said. It's a G4 Base T3. Now that I have these, I'll likely buy the cheaper ones next time.

I just had this very same problem and believe I have solved it!
You can remove the entire light unit from the hood. On first inspection it appears to be a sealed unit that does not allow you to remove either the wires or what looks to be a regular halogen bulb. If you turn the unit so the bulb is facing you, you can gently prise the glass from it's housing leaving the naked halogen bulb exposed beneath it. You can gently pull this from the housing and buy a new one to replace it. I would advise that when installing the new one you make sure it is completely free from any contaminant as any grease etc can greatly reduce the life of the bulb. Hope this helps!

I had the same experiences with my lights. I placed a 50v bulb and it blew the fuses. The fusees located on the right side of the bottom duct cover. use 5a 125 v fuse GE part # wb27x10542 but you can find a cheaper fuse at Radio Shack. Good luck