Einhell make garden power tools for a range of garden sizes and budgets. For those looking for a basic electric grass line trimmer then the Einhell BG-ET 2620 Electric Grass Trimmer has to be worthy of consideration.
The 260 watt Einhell BG-ET 2620 Electric Grass Trimmer has a 20cm cutting width, a head that can be rotated through 180° and an automatic bump feed with a twin cutting line.
The best price for this electric strimmer that I found was at CPC who at the time of writing are offering the Einhell BG-ET 2620 at £23.98 with free delivery.
CPC also carry spare spools for the Einhell BG-ET 2620, these can be seen here.