This bayonet capped, warm white LED bulb, has an average life of 50, 000 hours, 50 times that of an ordinary incandescent & only uses a fraction of the power as it is ultra low energy. Use as a replacement for any ordinary light bulb & you start saving immediatily. Lower power costs and 50 fewer replacements leading to vastly reduced maintenance costs means that these bulbs are not only super green but are a money saving investment. Lyco for all your lighting needs As Lyco has one of the most expansive lighting ranges in the industry, you are bound to find to perfect solution to any & all of you lighting requirements