Dziwani za Buku la ogwiritsa la Technical Precision DT2000XL Light Bulb. Phunzirani za katchulidwe kake, malangizo oyikapo, ndi zinthu zofunika kwambiri potchera tizilombo mogwira mtima. Sangalalani ndi malo anu omasuka ndi babu wolowa m'malo mwapamwamba kwambiri.