Illuminating appliance with numerous LED chips contained in holder with contact pins and of good heat convection from LED chips in radial and symmetrical lay-out on holder, for uniform and fast heat convection

摘要

LED chips (11) are contained in holder (12) with contact pins (13). Holder has good convection from LED-chips, which are arranged in it in radial and symmetrical lay-out.Thus heat convection is uniform and fast to permit improvement of power of LED chips.