Chitsulo chalathyathyathya 

Zitsulo za Flat-bulb ndizo njira zotsika mtengo, zogwira mtima komanso zosagwira corrosion pa zofunika kuumitsa mbale. Ubwino waukulu ndi kulimba kwamphamvu koyerekeza ndi kulemera kwake komwe kumapereka kukana kwa ma buckling polemera pang'ono kusiyana ndi mipiringidzo yafulati kapena ngodya.
Mphepete mwazozungulira za mbiri ya zitsulo zopanda babu zikutanthauza kuti sipafunika kugaya m'mphepete musanapente, kusunga nthawi ndi ndalama popanga. Kuwonongeka kwa utoto ndi kuchuluka kwa zinyalala zowononga kumachepetsedwanso, kukulitsa ntchito ya moyo.

Mwadzina dimension (mm)			Misa/mayunitsi kutalika
b×t×h	r1	r
80 × 6 × 20	4	≤2	4.88
100 × 7 × 22.5	4.5	≤2	6.86
100 × 8 × 23.5	4.5	≤2	7.65
120 × 6 × 23	5	≤2	7.32
120 × 7 × 24	5	≤2	8.26
120 × 8 × 25	5	≤2	9.2
140 × 7 × 26	5.5	≤2	9.75
140 × 8 × 27	5.5	≤2	10.85
140 × 10 × 29	5.5	≤3	13.05
160 × 7 × 29	6	≤2	11.46
160 × 8 × 30	6	≤2	12.72
160 × 9 × 31	6	≤2	13.97
160 × 11 × 33	6	≤3	16.49
180 × 8 × 33	7	≤2	14.8
180 × 9 × 34	7	≤2	16.22
180 × 10 × 35	7	≤3	17.63
180 × 11 × 36	7	≤3	19.04
200 × 9 × 37	8	≤2	18.57
200 × 10 × 38	8	≤3	20.14
200 × 11 × 39	8	≤3	21.71
200 × 12 × 40	8	≤3	23.28
220 × 10 × 41	9	≤3	22.77
220 × 11 × 42	9	≤3	24.5
220 × 12 × 43	9	≤3	26.22
240 × 10 × 44	10	≤3	25.5
240 × 11 × 45	10	≤3	27.39
240 × 12 × 46	10	≤3	29.27
260 × 10 × 47	11	≤3	28.35

Mwadzina dimension (mm)			Misa/mayunitsi kutalika
b×t×h	r1	r
260 × 11 × 48	11	≤3	30.39
260 × 12 × 49	11	≤3	32.43
280 × 11 × 51	12	≤3	33.5
280 × 12 × 52	12	≤3	35.7
280 × 13 × 53	12	≤3	37.9
300 × 11 × 54	13	≤3	36.7
300 × 12 × 55	13	≤3	39.09
300 × 13 × 56	13	≤3	41.44
320 × 12 × 58	14	≤3	42.6
320 × 13 × 59	14	≤3	45.09
320 × 14 × 60	14	≤4	47.6
340 × 12 × 61	15	≤3	46.2
340 × 13 × 62	15	≤3	48.86
340 × 14 × 63	15	≤4	51.5
370 × 13 × 66.5	16.5	≤3	54.7
370 × 14 × 67.5	16.5	≤4	57.6
370 × 15 × 68.5	16.5	≤4	60.5
400 × 14 × 72	18	≤4	63.96
400 × 15 × 73	18	≤4	67.1
400 × 16 × 74	18	≤4	70.2
430 × 14 × 76.5	19.5	≤4	70.6
430 × 15 × 77.5	19.5	≤4	73.9
430 × 17 × 79.5	19.5	≤4	80.7
430 × 19 × 81.5	19.5	≤4	87.4
430 × 20 × 82.5	19.5	≤4	90.8
Ndemanga: Kutalika komwe kulipo ndi 6m-20m, ndipo kalasi ndi A, B, D, AH32, AH36, DH32 ndi DH36, chonde titumizireni pazofunikira zina.