diff --git a/handbook/lights.html b/handbook/lights.html
index 9396c173e..fec9b550e 100644
--- a/handbook/lights.html
+++ b/handbook/lights.html
@@ -11,24 +11,41 @@
 <h2>Top camp</h2>
 <p>Top camp has no mains 230V electricity. 
 <p>Top camp does have solar-powered car batteries, so you need to bring a <b>12V car-type charger</b>  for your caving light and phones.
-<p>At top camp there is one 12V socket with an expo-supplied plug providing a pair of USB sockets. 
-Since 2 USB sockets is not enough for everyone's phones, you need to <b>bring your own</b> 12V-to-USB plug-in. 
+  <p>The solar/battery system provides various connectors:.</p>
+  <ul>
+    <li>Unit 1:</li>
+    <ul>
+      <li>2off cigarette 12V, 10A max each</li>
+      <li>1off cigarette 12V, 20A max</li>
+      <li>3off 4mm Jack's 12V, 10A max each</li>
+      <li>2off USB-A (5V)</li>
+    </ul>
+    <li>Unit2:</li>
+    <ul>
+      <li>6 cigarette 12V, 10A max each</li>
+      <li>2off USB-A 5V, 1A and 2.1A</li>
+    </ul>
+  </ul>
+<!-->Updated for status at end 2023<-->
+  
+<p>At top camp there is one expo-supplied 'cigarette' plug providing a pair of USB sockets. 
+Since 2 USB sockets is not enough for everyone's phones and lights, you need to <b>bring your own</b> 12V-to-USB plug-in. 
 (Providing proper permanently-wired USB charging is on our to-do list.)
-<p>USB to multiple-USB (e.g. 1:4) expander boxes don't work for charging lights. 
+<p>USB to multiple-USB (e.g. 1:4) hubs don't work for charging lights or drill batteries. 
 Even for charging phones they are very, very slow. 
-So if you are using USB to charge your caving light <b>you must</b> bring a light charger which <b>plugs directly into the 12V socket</b>.
+So if you are using USB to charge your caving light <b>you must</b> bring a light charger which <b>plugs directly into the 12V sockets.</b>.
 
 <h2>Base camp</h2>
-<p>Base camp has mains power and UK-style 230V mains sockets as well as EU-style mains sockets. 
+<p>Base camp has mains power and UK-style 230V mains sockets as well as a few EU-style mains sockets. 
 So your usual UK chargers will work and you don't need to bring any converter plugs.
 
 <p>We have one expo USB charging unit (labelled with purple gear-tape: the expo colour): 
-it has 6 powered big USB sockets and we have 2 microUSB cables and 2 USB-C cables. 
+it has 6 powered USB-A sockets and we have 2 microUSB cables and 2 USB-C cables. 
 People also bring their own mains-to-USB chargers but there may not be enough. 
 So to be sure, <b>bring your own</b> (and label it with your gear tape). 
 
 <h2>USB cables</h2>
-You need to bring your own USB charger cable for your phone (typically big USB to micro-USB). 
+You need to bring your own USB charger cable for your phone (typically USB-A to USB-C or micro-USB). 
 Yes, there are a lot of them about, but they are nearly all personal gear. 
 So <b>bring your own</b> (and a spare) and label it with your gear-tape colour.