Recent content by broadgage

fenix-store
  1. B

    How many people still use light sticks

    The infrared lightsticks were intended for military use. In order that infantry on the ground can signal their location to aircraft (equiped with night vision), without any visible light that gave away their position to enemy troops. Still used to an extent but less valuable these days as the...
  2. B

    Halogen inrush current

    Certainly possible, and use of a relay to control headlights on modern cars is common practice. Less applicable to motorcycles though as the load is less (single headlight rather than two), wire runs are much shorter, and space to mount the relay is at a premium.
  3. B

    How to determine voltage rating for incandescent bulbs?

    Agree, assume about 1.2 volts per cell. Ratings varied a bit but not by that much. Physically small cells supplying a large current relative to the size of the cell might be about 1.1 volts per cell. Note that lens end bulbs intended for a pair of AA or AAA cells were sometimes 2.2 volts...
  4. B

    Halogen inrush current

    I agree, if the switch was intended for general household use then it should be suited for controlling power tools, microwave ovens, air conditioners, large audio amplifiers, and other appliances with significant inrush currents. If intended for automotive use, then it should be suitable for...
  5. B

    6V "Lantern" Battery Lights - History? Anything good?

    One of the best lights for this battery was IMHO the UK Ever Ready "power beam lantern" no longer made but good used examples turn up regulary on fleabay. This light used a pair of 6 volt batteries in parallel and a 5.4 volt 0.5 amp bulb. Run time on zinc carbon batteries was dozens of hours. A...
  6. B

    Looking for 12 volt LED lighting from a car battery - illumination for a shipping container cabin

    Standard line voltage fixtures for screw base bulbs can be used if fitted with 12 volt LED lamps. Many vendors on ebay offer 12 volt LED bulbs. Anything connected to a car battery should be fitted with a suitable fuse, as close as possible to one of the battery terminals. For a small and simple...
  7. B

    Another new incandescent lamp coming out?!?!

    This is a scam pure and simple. Applying an infra red reflective coating to a halogen capsule DOES increase the efficiency of the lamp, but only moderately. It is established technology. By reflecting otherwise wasted heat back towards the filament, less energy is needed to heat a certain sized...
  8. B

    How many people still use light sticks

    I keep glowsticks to hand for emergencies, they are cheap enough to give away and are also the safest light in the event of a gas leak, or need to handle petrol. The genuine Cyalume branded glowsticks have an expiry date on the wrapper but work for years after that date. An alternative and very...
  9. B

    CREE HID replacement LED filament bulbs - anyone tried one?

    The Philips Dubai lamps are more efficient at 200 lumens per watt. Availability outside Dubai is limited, and they come in only 220/240 volt, and only in low wattages. These lamps sound most useful, and may be the most efficient yet available in larger wattages. Good for street lighting, sports...
  10. B

    Disaster Ready

    Re: disaster ready If space permits, it can be worth fitting a second, deep cycle battery to a car or truck. When the engine is running, a relay connects the two batteries together and both are charged by the vehicle alternator. When the engine is stopped, the relay opens and the extra battery...
  11. B

    Multi-Mode Incan Lights?

    Those bulbs had two similar filaments, not for a choice of light output but so as to have a spare filament available when the first one failed. Similar twin filament bulbs existed for miners lamps.
  12. B

    Multi-Mode Incan Lights?

    For reasons already given, any modern type of twin filament headlight bulb wont be very suitable. However decades ago, there existed twin filament headlight bulbs with two filaments of very different wattages, the low wattage one being a front marker light. No longer manufactured AFAIK but...
  13. B

    Cyber attack EMP event/attack discussion Not Political

    Re: Cyber attack EMP attack discussion Not Political I am not aware of any credible evidence that the pipeline attack was an EMP attack. Such an attack would be indiscriminate and the surroundings would be full of completely unrelated and now non functional electronics. Streets blocked with non...
  14. B

    How long for the Incan?

    No harm in stocking up, but those lamps are one of the most common types, possibly THE most common. Used for pilot lamps in vintage radio sets. As indicators in older vehicles. And as pilot lamps in industrial control panels. And yes in night lights. transformer lamp holders used to be...
  15. B

    Hub dynamo producing less power overtime?

    Do these in fact have brushes, or diodes ? Despite being called dynamos, my understanding is that they are in fact miniature permanent magnet alternators with an AC output to the lights, no diodes needed. The winding is on the stator, with the magnets on the moving part so no brushes either. I...
See more

Latest posts

Top