What Is Watt Led Bulb at 1.5v Supply?

Not LED or bulb able to run with 1.5V. The answer is Zero

1. why can't laser diode last long than a led bulb?

a laser diode emits from along the edge of the pn junction an led emits from the whole face of the anode because the laser has to emit from an area that is only as thick as the pn junction the power density power / sq area is much higher and that causes a much lower life

2. Can I use this light socket to power my new exhaust fan? (only 15watts exhaust fan 12 watts led bulb)?

voltage? amperage? there are alot of things you are not taking into account.... more info is needed

3. What happened to the $3 LED bulb that was reported to be in development a couple years ago?

We are still waiting for it! Let's hope they are seriously working on it

4. Can I safely use a 9w LED bulb in place of a 40w incandescent?

When a lamp lists a maximum wattage, its doing that based on the heat an incandescent bulb of that wattage will put off. The 9W=75W on the LED bulb is telling you that "even though this bulb only uses 9W of power, it puts out the same amount of light as a 75W incandescent". Lamps are rated on heat and power usage not light output. LED bulbs do get hot, and some get so hot that you can not use them in an enclosed fixture because their internal electronics will overheat, but it wo not hurt the lamp. If the lamp is rated for the heat of a 40W bulb, an LED that uses only 9W of power just can not get that hot even if it was nothing more than a 9W heating element

5. How about the Materials and Photoelectric solution, package information of LED Bulb Sunrise Series?

1.Materials and Photoelectric solution: *Conductive plastic Aluminium PC cover *IC driver2835SMD chip 2.Package information: MEAS:34.5*34.5*26.2 CM G.W:4.5KGS N.W:4.0KGS Qty:50PCS

6. How much does it cost to produce a 14W LED bulb in India?

A Philips Stellar Bright 14W Led Bulb Costs Rs 450 single piece via Distributor Philips.His Margin is Rs 50/-in one bulb.The Co margin is Rs 100 in a bulb.So making cost would be Rs 300 or even less

7. Acura TL 2011 LED bulb 9005 stay on at night?

The bulbs do not determine when they are on, it is the the switches and/or electrical sensors

8. Can I plug my 110V/2W/a7mA LED bulb into my 250V/660W lamp?

The wattage limit indexed on commonplace table lamps are often based on the thermal means of the lamps reflector head, the thermal means of the lamp socket, the thermal means of the twine terminations or the insulation on the twine or twine providing the lamp. The score is a optimal fee as set by using UL standards, to sidestep kit failure and hearth destructive factors. utilising an more suitable wattage bulb ought to reason a hearth or harm to the table lamp. Use of a CFL will possibly no longer help if the warmth generated by using the ballast exceeds the thermal score of the table lamp fixture. With CFL's it truly is not basically the lamp that generates warmth however the ballast additionally. it truly is advisable to envision with the table lamp producer before utilising a CFL.

9. A 7W led bulb got broken (its outer case) but it is still working, would it emit harmful rays if I use it?

Well, unfortunately there's a lot of different tech used in LED bulbs unlike incandescents which were always reliably a short piece of tungsten wire that got really hot.Fortunately there are not seriously toxic materials in LEDs. And there is no need for an evacuated bulb. The bulb may have several purposes. The LED may still work. However it may contain phosphors that give the a high output blue LED a more natural spectrum than a plain LED alone. This may wreck the spectrum and may not work as intended.It may also just be decorative to make it more light-bulbish-like. Broken it may or may not pose a shock hazard, I can not tell without seeing it, probably not likely.I really can not tell which kind you have so I would say throw it away and get a new one -if it had been incandescent or CFL you would be buying new anyway at this point. You can try and see if the light appear OK and still use it. It might pose a shock hazard or the light may be off-color