Many solar energisers are low in power and/or utilise solar panels which are inadequate to keep the battery charged. Hotline have designed the Fire Drake energisers to operate at popular power levels, suitable for a range of applications, with panels carefully matched to replace the energy used while operating. It has a 0.15 joules output with 2.5 watt solar panel. A battery charger is also included to ensure the battery charged during the winter months and when the energiser is not in use. 0.18 stored joules. 0.15 output joules. 12v 7ah internal battery. 2.5 w solar panel. On/off switch. Pulse indicator. Battery charger. 3 year warranty. Distance up to 1.5km.