Petzl - Supplier of caving technical equipment and headlamps. Detailed product listings, technical advice, worldwide supplier contacts. Nevtek - Fluorescent cap lamps. PMI Ropes and Equipment - Manufacturer and supplier of ropes and associated rigging equipment. Bassett Metal Studio - Designers of rope rescue equipment. Lyon Equipment - UK based distributor for some of the biggest names in caving equipment. Rite in the Rain - Manufacturer of waterproof, outdoor writing paper. Meggaflash Technologies - Manufacturer of flashbulbs with masses of information on bulb availability and specifications. Firefly Electronics - A specialist manufacturer of ultra sensitive slave units. Wisdom Li-Lion Battery - Manufacturer of li-ion battery mineral lamps, carbides and mining lamps. Technical details, advice and trading information. Speleo Technics - Specialist supplier of caving lights and lighting equipment, based in the UK. HDS Systems - The lithium powered LED Action Light, suitable for emergency cave lighting.