The long tube UVB bulbs are best, like Zoomed's Repsitun model: http://lllreptile.com/store/catalog/reptile-supplies/uvb-fluorescent-lights-mercury-vapor-bulbs/-/zoo-med-24-repti-sun-100-fluorescent-bulb/ Remember to replace UVB bulbs according to the manufacturers recommendation after which time the bulb will no longer produce UVB even if visible light still is.
1	The	the	DET	DT	Definite=Def|PronType=Art	5	det	5:det	_
2	long	long	ADJ	JJ	Degree=Pos	3	amod	3:amod	_
3	tube	tube	NOUN	NN	Number=Sing	5	compound	5:compound	_
4	UVB	uvb	NOUN	NN	Number=Sing	5	compound	5:compound	_
5	bulbs	bulb	NOUN	NNS	Number=Plur	7	nsubj	7:nsubj	_
6	are	be	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	7	cop	7:cop	_
7	best	good	ADJ	JJS	Degree=Sup	0	root	0:root	SpaceAfter=No
8	,	,	PUNCT	,	_	7	punct	7:punct	_
9	like	like	ADP	IN	_	13	case	13:case	_
10-11	Zoomed's	_	_	_	_	_	_	_	_
10	Zoomed	Zoomed	PROPN	NNP	Number=Sing	13	nmod:poss	13:nmod:poss	_
11	's	's	PART	POS	_	10	case	10:case	_
12	Repsitun	Repsitun	PROPN	NNP	Number=Sing	13	compound	13:compound	_
13	model	model	NOUN	NN	Number=Sing	7	obl	7:obl:like	SpaceAfter=No
14	:	:	PUNCT	:	_	13	punct	13:punct	_
15	http://lllreptile.com/store/catalog/reptile-supplies/uvb-fluorescent-lights-mercury-vapor-bulbs/-/zoo-med-24-repti-sun-100-fluorescent-bulb/	http://lllreptile.com/store/catalog/reptile-supplies/uvb-fluorescent-lights-mercury-vapor-bulbs/-/zoo-med-24-repti-sun-100-fluorescent-bulb/	X	ADD	_	13	appos	13:appos	_
16	Remember	remember	VERB	VB	Mood=Imp|VerbForm=Fin	7	parataxis	7:parataxis	_
17	to	to	PART	TO	_	18	mark	18:mark	_
18	replace	replace	VERB	VB	VerbForm=Inf	16	xcomp	16:xcomp	_
19	UVB	uvb	NOUN	NN	Number=Sing	20	compound	20:compound	_
20	bulbs	bulb	NOUN	NNS	Number=Plur	18	obj	18:obj	_
21	according	accord	VERB	VBG	ExtPos=ADP|VerbForm=Ger	26	case	26:case	_
22	to	to	ADP	IN	_	21	fixed	21:fixed	_
23	the	the	DET	DT	Definite=Def|PronType=Art	26	det	26:det	_
24-25	manufacturers	_	_	_	_	_	_	_	_
24	manufacturer	manufacturer	NOUN	NN	Number=Sing	26	nmod:poss	26:nmod:poss	_
25	s	's	PART	POS	Typo=Yes	24	case	24:case	CorrectForm='s
26	recommendation	recommendation	NOUN	NN	Number=Sing	18	obl	18:obl:according_to|29:nmod	_
27	after	after	ADP	IN	_	29	case	29:case	_
28	which	which	DET	WDT	PronType=Rel	29	det	26:ref	_
29	time	time	NOUN	NN	Number=Sing	35	obl	35:obl:after	_
30	the	the	DET	DT	Definite=Def|PronType=Art	31	det	31:det	_
31	bulb	bulb	NOUN	NN	Number=Sing	35	nsubj	35:nsubj	_
32	will	will	AUX	MD	VerbForm=Fin	35	aux	35:aux	_
33	no	no	ADV	RB	_	34	advmod	34:advmod	_
34	longer	long	ADV	RBR	Degree=Cmp	35	advmod	35:advmod	_
35	produce	produce	VERB	VB	VerbForm=Inf	26	acl:relcl	26:acl:relcl	_
36	UVB	uvb	NOUN	NN	Number=Sing	35	obj	35:obj	_
37	even	even	ADV	RB	_	42	advmod	42:advmod	_
38	if	if	SCONJ	IN	_	42	mark	42:mark	_
39	visible	visible	ADJ	JJ	Degree=Pos	40	amod	40:amod	_
40	light	light	NOUN	NN	Number=Sing	42	nsubj	42:nsubj	_
41	still	still	ADV	RB	_	42	advmod	42:advmod	_
42	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	35	advcl	35:advcl:if	SpaceAfter=No
43	.	.	PUNCT	.	_	16	punct	16:punct	_
