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2. Headlamp (outdoor) - Wikipedia

   en.wikipedia.org/wiki/Headlamp_(outdoor)

   Both rechargeable and disposable batteries supported, to be able to provide light after the rechargeable battery is discharged; Beam may be narrow (spot), broad (flood), or focussable; Lamp angle may be adjusted between forward to downward; Maximum brightness may range from adequate for close work (e.g., 50 lumens), to very bright

3. Flashlight - Wikipedia

   en.wikipedia.org/wiki/Flashlight

   A set of modern LED flashlights. A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp.Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the early 2000s.

4. Lithium iron phosphate battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

   The specific energy of LFP batteries is lower than that of other common lithium-ion battery types such as nickel manganese cobalt (NMC) and nickel cobalt aluminum (NCA). As of 2024, the specific energy of CATL's LFP battery is claimed to be 205 watt-hours per kilogram (Wh/kg) on the cell level. [13] BYD's LFP battery specific energy is 150 Wh ...

5. Carbide lamp - Wikipedia

   en.wikipedia.org/wiki/Carbide_lamp

   This, in turn, controls the flow rate of the gas and the size of the flame at the burner, and thus the amount of light it produces. This type of lamp generally has a reflector behind the flame to help project the light forward. An acetylene gas powered lamp produces a bright, broad light.

6. Bardic lamp - Wikipedia

   en.wikipedia.org/wiki/Bardic_lamp

   The Bardic Rail Signalling Lamp was the original name of a particular type of battery powered railway signalling handlamp made from 1962 by Bardic, Ltd. [1] for use by rail and trackside workers. It became the standard battery operated handlamp in use on British Rail , replacing oil-lit lamps.

7. Kerosene lamp - Wikipedia

   en.wikipedia.org/wiki/Kerosene_lamp

   A kerosene lamp (also known as a paraffin lamp in some countries) is a type of lighting device that uses kerosene as a fuel. Kerosene lamps have a wick or mantle as light source, protected by a glass chimney or globe; lamps may be used on a table, or hand-held lanterns may be used for portable lighting.