Exhibit 99.1

AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13D

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of a Statement on Schedule 13D and any and all amendments thereto with respect to the securities referenced in such statement, as amended, and that this Agreement be included as an Exhibit to such filing. This Agreement may be executed in any number of counterparts each of which shall be deemed to be an original and all of which together shall be deemed to constitute one and the same Agreement. Additionally, the undersigned hereby agree as follows:

(i) Each of them is individually eligible to use the Schedule 13D to which this Exhibit is attached, and such Schedule 13D is filed on behalf of each of them; and

(ii) Each of them is responsible for the timely filing of such Schedule 13D and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

Date: February 9, 2017

LED HOLDINGS, LLC
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Manager
PP IV (AIV) LED, LLC
By:	Pegasus Partners IV (AIV), L.P.,
	its sole member
By:	Pegasus Investors IV, L.P.,
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS PARTNERS IV (AIV), L.P.
By:	Pegasus Investors IV, L.P.,
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer

PP IV LED, LLC
By:	Pegasus Partners IV, L.P.,
	its sole member
By:	Pegasus Investors IV, L.P.,
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS PARTNERS IV, L.P.
By:	Pegasus Investors IV, L.P.
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
LSGC HOLDINGS LLC
By:	Pegasus Partners IV, L.P.,
	its managing member
By:	Pegasus Investors IV, L.P.,
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer

LSGC HOLDINGS II LLC
By:	Pegasus Partners IV, L.P.,
	its sole member
By:	Pegasus Investors IV, L.P.,
	its general partner
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
LSGC HOLDINGS III LLC
By:	Pegasus Partners V, L.P.,
	its sole member
By:	Pegasus Investors V, L.P.,
	its general partner
By:	Pegasus Investors V (GP), L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
LSGC HOLDINGS IIIA, LLC
By:	LSGC Holdings III LLC
	its sole member
By:	Pegasus Partners V, L.P.,
	its sole member
By:	Pegasus Investors V, L.P.,
	its general partner
By:	Pegasus Investors V (GP), L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer

PCA LSG HOLDINGS, LLC
By:	Pegasus Capital, LLC,
	its managing member
By:	/s/ Craig Cogut
Name:	Craig Cogut
Title:	President & Managing Member
PEGASUS INVESTORS IV, L.P.
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS CAPITAL PARTNERS IV, L.P.
By:	Pegasus Investors IV GP, L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS INVESTORS IV GP, L.L.C.
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer

PEGASUS PARTNERS V, L.P.
By:	Pegasus Investors V, L.P.,
	its general partner
By:	Pegasus Investors V (GP), L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS INVESTORS V, L.P.
By:	Pegasus Investors V (GP), L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS CAPITAL PARTNERS V, L.P.
By:	Pegasus Investors V (GP), L.L.C.,
	its general partner
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS INVESTORS V (GP), L.L.C.
By:	/s/ Daniel Stencel
Name:	Daniel Stencel
Title:	Chief Financial Officer and Treasurer
PEGASUS CAPITAL, LLC
By:	/s/ Craig Cogut
Name:	Craig Cogut
Title:	President & Managing Member
/s/ Craig Cogut
CRAIG COGUT